Calculator
Evaluate expressions, track history, and handle quick arithmetic without leaving the page.
- Expression input
- Recent history
- Copy result
Client-side utility collection
One place for privacy-first browser tools.
Fast client-side utilities for text, numbers, dates, images, PDFs, and developer workflows. Everything runs in your browser.
Routes, navigation, RSS, and sitemap are generated from a single tool registry.
Tool catalog
137 browser utilities, ready for more.
Unit Converter
Convert between common length, weight, area, volume, speed, and temperature units.
- Six categories
- Swap units
- Formula hint
Recipe Converter & Scaler
Scale servings locally, convert cups and grams by ingredient, adjust pan size, and export a kitchen-ready shopping list.
- Serving and pan-size scaling
- Ingredient-aware cups-to-grams conversions
- Shopping list, checklist, and CSV export
Currency Converter
Convert major currencies using a local offline rate snapshot you can edit and store in the browser.
- Offline rates
- Editable snapshot
- Reverse rate
Date Calculator
Compare dates, count days, and add or subtract precise offsets from a base date.
- Date difference
- Offset planner
- Weekday count
Age Calculator
Calculate exact age, total days lived, next birthday timing, milestones, and age gaps from one local page.
- Exact age and total time lived
- Next birthday and milestone tracker
- Second-person age gap and CSV export
Timezone Converter
Compare two time zones and preview meeting times across major cities.
- Zone conversion
- World clock
- Browser local time
Timestamp Converter
Convert Unix timestamps into local or UTC time and turn readable dates back into seconds or milliseconds.
- Auto detect units
- UTC and local output
- Now shortcut
ICS Event Generator
Create calendar event files locally with timezone-aware scheduling, reminders, guests, and recurrence presets.
- Timed or all-day events
- Recurrence and reminders
- Guest-ready .ics download
Cron Expression Builder
Build, validate, and explain 5-field cron expressions with upcoming run previews.
- 5-field validation
- Upcoming run preview
- Preset schedules
QR Generator
Create QR codes locally with custom size, colors, margin, and downloadable SVG or PNG output.
- SVG export
- PNG export
- Color controls
Barcode Generator
Create Code 128, EAN-13, and UPC-A barcodes locally with validation, batch rows, and SVG or PNG export.
- Three barcode formats
- Batch validation and preview
- SVG and PNG download
Password Generator
Generate multiple strong passwords with configurable character sets and instant strength hints.
- Crypto RNG
- Batch suggestions
- Entropy estimate
JWT Decoder
Decode JWT header and payload locally, inspect common claims, and preview token timing without verification.
- Header and payload decode
- Claim timing preview
- Bearer token cleanup
JWT Builder & Verifier
Create HMAC-signed JWTs locally, edit claims, and verify pasted tokens against the same shared secret.
- Claim presets and timestamp helpers
- HMAC signing and signature verification
- Bearer and cURL output
HMAC Generator
Sign messages locally with HMAC, switch encodings, verify expected signatures, and preview prefixed headers.
- Message and secret encodings
- Expected signature compare
- Prefixed header preview
UUID Generator
Generate single or batched UUID v4 values and copy them in the format you need.
- Batch generation
- Uppercase option
- Hyphen toggle
Hash Generator
Hash text or files locally with standard SHA algorithms and compare against an expected digest.
- Text and file input
- Digest compare
- Multiple SHA variants
Regex Tester
Test regular expressions against sample text with flags, group capture details, and replace previews.
- Live test run
- Group capture table
- Replace preview
JSON Formatter
Validate, format, minify, and recursively sort JSON while tracking payload stats.
- Pretty print
- Minify
- Sort keys
JSON Path Explorer
Inspect JSON structure locally, inventory every field path, search nested values, and copy exact node paths.
- Path inventory
- Search and filter
- Node detail inspector
JSON to TypeScript
Generate TypeScript types from JSON locally with optional-field inference, naming controls, and path-level audits.
- Interface or type alias output
- Optional field and union inference
- Path audit with copy actions
JSON Schema Generator & Validator
Infer JSON Schema locally from sample JSON, tune draft and strictness options, then validate another payload against it.
- Schema inference with draft and required-field controls
- Second payload validation with path-level errors
- Path audit, copy actions, and schema download
SQL Formatter
Format SQL locally, switch keyword casing, preview structure, and inspect query metadata without sending queries anywhere.
- Multi-statement formatting
- Keyword and identifier casing
- Statement and table insights
CSV to JSON
Convert CSV or TSV rows into JSON objects locally with header-based keys and copy-ready output.
- CSV or TSV input
- Header-based objects
- Pretty or minified export
CSV Duplicate Finder
Find duplicate CSV or TSV rows locally, choose matching columns, and export a cleaned file plus the repeated rows.
- Match full rows or selected columns
- Keep first or last duplicate
- Clean and duplicate-only CSV export
JSON to CSV
Turn JSON arrays into CSV locally with nested key flattening, field selection, and spreadsheet-ready downloads.
- Nested key flattening
- Column selection
- CSV preview and download
Text Diff Checker
Compare two text blocks line by line, spot additions or removals, and copy the filtered output you need.
- Line-by-line compare
- Change counters
- Copy filtered output
Base64
Encode or decode UTF-8 text and files, with optional URL-safe output and data URL support.
- UTF-8 safe
- File encode
- URL-safe mode
Number Base Converter
Convert integers between bases 2 and 36 locally with prefix detection, grouped binary, byte previews, and copy-ready literals.
- Auto-detect base prefixes and large integer support
- Grouped binary, byte table, and ASCII preview
- Copy-ready literals for binary, octal, decimal, hex, and custom bases
Data URL Builder
Create, inspect, preview, and decode data: URLs locally from text or files with ready-to-paste embed snippets.
- Text or file input
- Live media preview
- HTML, CSS, and decoded export
URL Encoder
Encode, decode, and inspect URL query parameters without sending data anywhere.
- Encode/decode
- Parameter parser
- Query preview
UTM Builder
Build campaign URLs locally, preserve existing query parameters, and validate UTM naming before sharing.
- Channel presets
- Existing query preservation
- Recent template storage
Mailto Link Builder
Create prefilled email links locally with recipients, subject, body templates, and copy-ready snippets.
- Recipient and body fields
- Live draft preview
- URL, HTML, and Markdown copy
Email Address Validator & Cleaner
Audit email lists locally with typo suggestions, role and disposable flags, duplicate cleanup, and export-ready valid results.
- Batch audit with verdicts and fixes
- Duplicate, role, free-provider, and disposable flags
- Clean valid export, checklist, and CSV download
Email Signature Generator
Build polished email signatures locally with live previews, client-safe HTML, install steps, and copy-ready text output.
- Three signature layouts
- Client-safe HTML and plain text export
- Install checklist and preview audit
Email Subject Line Tester
Draft subject lines locally, preview inbox clipping, flag risky wording, and tune the paired preheader before you send.
- Mobile and desktop inbox previews
- Length and merge-tag audit
- Spam-risk and repetition checks
vCard Generator
Create shareable contact cards locally with live previews, QR export, and downloadable .vcf files.
- Live contact preview
- QR code export
- .vcf download and copy
Social Card Preview
Draft Open Graph and Twitter card metadata locally with live previews, snippet output, and launch checks.
- Open Graph and Twitter tags
- Large and compact card previews
- Metadata quality checklist
Meta Tag Generator
Draft page title, description, canonical, robots, and social metadata with live SERP and card previews.
- Title and description audit
- SERP and social previews
- Ready-to-paste head tags
SERP Snippet Preview
Preview Google-style snippets locally with pixel-width checks, mobile and desktop cards, and query-term highlighting.
- Desktop and mobile snippet previews
- Pixel-width truncation checks
- Query highlight and launch checklist
Schema Markup Generator
Build JSON-LD for articles, FAQs, products, events, and organizations with live previews and launch checks.
- Five schema templates
- JSON-LD and script output
- Validation checklist
Hreflang Builder
Build hreflang clusters locally, generate HTML or HTTP header output, and audit pasted alternate tags for gaps.
- HTML, HTTP, and sitemap output
- Locale and host validation
- Pasted tag audit
robots.txt Generator
Draft robots.txt rules locally with presets, multi-bot groups, sitemap links, and path match previews.
- Preset policies
- Path match tester
- Copy and download output
robots.txt Tester & Pattern Lab
Parse pasted robots.txt rules locally, simulate crawler access, and audit path patterns before you publish changes.
- Crawler and path simulation
- Rule precedence audit
- Sitemap and directive extraction
XML Sitemap Builder
Build XML and TXT sitemaps locally, normalize large URL lists, and audit duplicates or weak page coverage before launch.
- XML and TXT sitemap output
- URL normalization and duplicate audit
- Section coverage and priority hints
Readability & SEO Checker
Audit content clarity, reading grade, keyword density, and SERP snippet length from one local workspace.
- Readability score and grade
- SERP snippet preview
- Sentence and keyword audit
Delimiter Studio
Split pasted values, clean and deduplicate them, then export lines, CSV, JSON arrays, or SQL IN lists locally.
- Auto delimiter detection
- Deduplicate and sort
- SQL and JSON export
Decision Matrix
Compare options locally with weighted criteria, live rankings, decisive-factor analysis, and share-ready exports.
- Weighted criteria and live score matrix
- Decisive-factor and flip sensitivity analysis
- Share summary, local draft, and CSV export
Meeting Cost Calculator
Estimate meeting cost by attendee role, preparation time, and recurrence, then compare leaner attendance and break-even scenarios.
- Role-based attendee and time costing
- Recurring monthly and annual impact
- Lean attendance and break-even analysis with CSV export
Freelance Rate Calculator
Turn income goals, business costs, taxes, time off, and billable capacity into sustainable hourly, daily, and project rates.
- Income, overhead, tax, and benefits planning
- Billable-capacity and utilization scenarios
- Hourly, daily, and project quotes with CSV export
Running Pace Calculator
Convert distance and finish time into pace, build kilometer or mile splits, and compare race predictions and pacing strategies.
- Distance, time, pace, and speed conversion
- Race predictions and negative-split planning
- Kilometer or mile split table with CSV export
HTTP Header Analyzer
Parse raw request or response headers locally, inspect security and cache signals, and review cookie or CORS details.
- Request or response parsing
- Security and cache checklist
- Cookie and CORS insights
Text Case Converter
Transform text into common writing and developer naming styles with one click.
- Prose styles
- Dev naming styles
- Copy any result
Text Line Toolkit
Sort, shuffle, filter, trim, and deduplicate pasted lines locally with a duplicate report and export-ready output.
- Sort and shuffle modes
- Duplicate strategy controls
- Filter and export output
Markdown Table Generator
Build Markdown tables visually, paste CSV or TSV, and import JSON rows without leaving the browser.
- Visual editor
- CSV or TSV paste
- JSON rows import
Markdown Preview
Write Markdown locally with live preview, heading outline, document stats, and copy-ready HTML output.
- Live rendered preview
- Heading outline
- HTML export and download
Lorem Ipsum Generator
Generate placeholder paragraphs, sentences, or words locally for mockups, docs, and content drafts.
- Paragraph, sentence, or word mode
- Classic opening toggle
- Copy or TXT download
Word Counter
Count words, lines, characters, reading time, and repeated keywords as you type.
- Live stats
- Reading time
- Top keywords
BMI Calculator
Calculate BMI in metric or imperial units and view healthy weight guidance for the same height.
- Metric and imperial
- Range label
- Healthy span
Sleep Calculator
Plan bedtimes, wake-up times, and naps locally with sleep-cycle suggestions, age-based targets, and a practical bedtime checklist.
- Bedtime and wake-time planner
- Nap finish and cycle schedule
- Age-based sleep target guidance
Body Fat Calculator
Estimate body fat locally with the Navy method, compare it to a BMI-based estimate, and review lean-mass target scenarios.
- Navy and BMI-based estimate comparison
- Lean mass, fat mass, and category breakdown
- Target weight scenarios and measurement checklist
Percentage Calculator
Handle percentage-of, ratio, and percent-change calculations from one page.
- Three modes
- Percent change
- Quick answers
Interest Calculator
Calculate savings growth, compound interest, loan payments, total interest, and payoff schedules locally.
- Savings and loan modes
- Compound interest
- Monthly payoff schedule
Mortgage Calculator
Estimate mortgage payments, compare payoff scenarios, and inspect amortization details with taxes, insurance, PMI, and extra payments.
- All-in monthly payment
- Extra payment comparison
- Amortization schedule
BTU & AC Size Calculator
Estimate room cooling load locally with room dimensions, climate, insulation, sun exposure, occupancy, and appliance heat gains.
- Room and volume sizing
- Climate and heat-load adjustments
- Capacity ladder, checklist, and CSV export
Paint Calculator & Room Planner
Estimate wall and ceiling paint by room, subtract doors and windows, compare can sizes, and build a cost-ready shopping plan locally.
- Multi-room wall and ceiling measurement
- Door, window, coat, and waste adjustments
- Can count, cost summary, checklist, and CSV export
Loan Payoff Calculator
Model debt payoff locally with extra-payment scenarios, payoff-date forecasts, strategy comparisons, and a month-by-month schedule.
- Baseline and accelerated payoff scenarios
- Payoff date and interest-saved comparison
- Monthly schedule with CSV export
Grade Calculator
Plan course outcomes locally with final-exam targets, weighted category tracking, scenario tables, and export-ready summaries.
- Final exam target calculator
- Weighted coursework planner
- Scenario ladder, checklist, and CSV export
Color Converter
Convert HEX, RGB, and HSL values instantly with a live preview and copy-ready output.
- HEX RGB HSL
- Live preview
- Quick palette
Color Contrast Checker
Check WCAG contrast ratios, preview real UI text, and generate accessible color alternatives locally.
- WCAG AA and AAA checks
- Live UI preview
- Accessible color suggestions
Color Palette Accessibility Lab
Build and audit a color palette locally with pairwise contrast checks, token previews, and color-vision simulations.
- Pairwise contrast matrix
- Color-vision simulation previews
- CSS variable and JSON export
CSS Gradient Generator
Build linear, radial, or conic gradients locally with multi-stop controls, live UI previews, and copy-ready code.
- Linear, radial, and conic gradients
- Multi-stop editor
- CSS and Tailwind export
Favicon Generator
Create favicon PNG sizes locally from text, emoji, or an uploaded image, then copy ready-to-use HTML and manifest snippets.
- Text, emoji, or image source
- Multi-size icon previews
- HTML and manifest snippets
MIDI Composer
Compose, edit, play, import, and download short MIDI patterns directly in the browser.
- Piano-roll editing
- Browser playback
- MIDI import and export
Image Resizer
Resize images locally with aspect-ratio controls, format selection, quality tuning, and download output.
- Aspect lock
- Format export
- Preview
Image Cropper & Social Size Studio
Crop images locally with drag selection, aspect presets, rotation, coordinate controls, and export-ready social sizes.
- Drag-and-drop crop box with coordinate controls
- Avatar, post, banner, and story aspect presets
- PNG, JPEG, and WebP export after rotation
Image Converter
Convert images between PNG, JPEG, and WebP locally with optional resizing and quality controls.
- Format conversion
- Optional resize
- Quality control
Image Compressor & Quality Lab
Compress photos locally with side-by-side previews, format switching, transparency checks, and quick quality profiles.
- Before and after preview with savings stats
- Auto, JPEG, WebP, and PNG output modes
- Quick quality profiles with download-ready export
EXIF Viewer & Metadata Cleaner
Inspect photo metadata locally, flag GPS or device details, and download a cleaned image without EXIF.
- EXIF field inspection
- GPS and privacy risk flags
- Clean image export without metadata
Image to Text OCR Workspace
Extract text from images locally with multilingual OCR, preprocessing controls, confidence stats, and line-by-line exports.
- Batch image OCR with multilingual recognition
- Scale, grayscale, invert, and threshold preprocessing
- Confidence stats plus TXT and CSV export
Screen Defect Test
Check dead pixels, stuck pixels, backlight bleed, gradients, uniformity, sharpness, and color patterns in fullscreen.
- Fullscreen color cycle
- Bleed and uniformity checks
- Stuck-pixel flasher
Microphone Test
Test your microphone locally with live input level, frequency activity, clipping alerts, and a short recording preview.
- Device picker and permission flow
- Live waveform, spectrum, and level history
- Short recording preview and download
Monitor Response Test
Run a local moving target test for monitor response speed, ghosting, blur, and inverse ghosting checks.
- Adjustable px/sec
- Target gap comparison
- Fullscreen frame stats
PDF Merge
Combine multiple PDF files in the browser, reorder them, and download one merged document.
- Multiple files
- Reorder list
- Download merged PDF
Image to PDF
Turn JPG, PNG, or WebP images into a downloadable PDF locally with reorder controls.
- Multiple images
- Page size options
- Reorder and export
PDF Composer
Combine PDF pages and image files in one visual sequence, reorder pages, and export a new PDF.
- PDF page previews
- Add images
- Reorder mixed output
PDF Split
Extract selected page ranges from a PDF into a new document without uploading the file.
- Range extraction
- Page count preview
- Download result
PDF to JPG
Render PDF pages into downloadable JPG images directly in the browser.
- Page range selection
- Quality and scale controls
- Download each JPG
SVG Viewer & Optimizer
Inspect SVG markup, preview it safely, clean editor noise, and export a lighter responsive asset locally.
- Safe live preview
- Optimization controls
- Before and after stats
Subtitle Converter
Convert SRT and WebVTT locally, shift timestamps, renumber cues, and inspect subtitle timing before export.
- SRT and VTT conversion
- Millisecond timing shift
- Cue preview and stats
API Request Builder
Build API requests locally with headers, query params, auth helpers, and copy-ready cURL, fetch, or Axios snippets.
- cURL, fetch, and Axios output
- Header and query editors
- Auth and body presets
cURL Converter & Parser
Parse pasted cURL commands locally, inspect request parts, mask secrets, and export fetch, Axios, or Python requests code.
- cURL command parsing
- Secret masking and request audit
- fetch, Axios, and Python requests export
Aspect Ratio Calculator
Reduce ratios, scale widths or heights, compare common presets, and preview responsive frames locally.
- Ratio reduction and scaling
- Preset comparison
- Live frame preview and CSS snippet
IP Subnet Calculator
Analyze IPv4 CIDR blocks locally with subnet masks, usable ranges, binary breakdowns, and child subnet planning.
- CIDR and mask breakdown
- Usable host and range math
- Child subnet planner
SemVer Comparator
Compare semantic versions, test version ranges, and sort release lists locally with stable and prerelease insight.
- Version compare and diff labels
- Range tester with pass or fail results
- Sorted release list with stable insights
XML Formatter
Format, minify, validate, and inspect XML locally with structure stats and tag summaries.
- Pretty print and minify
- Validation status
- Tag and path insights
CSP Builder
Build Content Security Policy headers locally with presets, directive editors, risk checks, and copy-ready output.
- Policy presets and directive editor
- Risk checklist and source tester
- Header, meta, and report-only output
CORS Header Builder
Model cross-origin requests locally, generate CORS response headers, and audit risky policy combinations before shipping.
- Request simulator and preflight check
- Header policy builder with audits
- Express and Nginx output
Dotenv & INI Studio
Parse .env or INI files locally, audit duplicate keys, mask likely secrets, and export normalized JSON or shell snippets.
- .env and INI parsing
- Duplicate and secret audit
- JSON and shell export
Chmod Calculator
Convert Unix permission modes locally with octal and symbolic editing, special bits, and file or directory behavior notes.
- Octal and checkbox editing
- Special bits and command preview
- File and directory permission notes
Unicode Inspector
Inspect Unicode text locally with normalization previews, invisible character detection, code point tables, and byte counts.
- Normalization form comparison
- Invisible and bidi character audit
- Code point and UTF-8 analysis
CSV Audit Studio
Profile CSV or TSV data locally with column type inference, missing-value checks, duplicate detection, and top-value summaries.
- Delimiter and header detection
- Column quality profile
- Duplicate row and value summary
Slug Generator & Redirect Planner
Turn titles into clean slugs locally with batch processing, collision checks, URL previews, and redirect-ready mappings.
- Batch title processing
- Collision-safe slug planner
- URL preview and redirect map export
JSON Patch Builder
Compare source and target JSON locally, draft RFC 6902-style patch operations, and verify the patched result before shipping.
- Source and target JSON compare
- RFC 6902-style patch draft
- Patch verification and path audit
Sensitive Data Redactor
Detect emails, phones, cards, IPs, tokens, and JWTs locally, then mask or relabel them before sharing text.
- Pattern-based sensitive data scan
- Masking modes with reveal controls
- Redaction audit and export
HTML Audit & Link Extractor
Inspect pasted HTML locally for headings, links, metadata, image alt coverage, and quick SEO risk signals.
- Heading and link inventory
- Metadata and alt-text audit
- CSV export with filters
Redirect Rule Generator
Plan URL redirects locally with path normalization, chain detection, platform-ready rules, and migration test cases.
- Bulk old-to-new URL mapping
- Chain and loop detection
- Nginx, Apache, Netlify, and Vercel rule output
Timesheet Calculator
Track work shifts locally with break-aware hour totals, weekly overtime, pay estimates, and export-ready summaries.
- Shift table with break tracking
- Weekly overtime and pay estimate
- Daily summary, checklist, and CSV export
Invoice Generator
Build polished invoices locally with live totals, reusable line items, payment tracking, and PDF or CSV export.
- Live invoice preview
- Tax, discount, and paid tracking
- PDF, CSV, and draft export
Rent Split Calculator
Split rent fairly with room-size weights, shared-cost adjustments, deposit planning, and roommate-ready summaries.
- Room-size and occupant weighting
- Shared costs, deposit, and adjustment planning
- Roommate summary and CSV export
Subscription Tracker
Track recurring subscriptions locally with monthly cost rollups, renewal timing, sharing adjustments, and cut-first planning.
- Multi-plan subscription ledger
- Renewal and price-increase planning
- Savings summary, checklist, and CSV export
Profit Margin Calculator
Model pricing locally with margin, markup, break-even units, platform fees, tax, discounts, and target-profit scenarios.
- Margin, markup, and net-profit modeling
- Platform fees, discounts, and tax scenarios
- Break-even planning, checklist, and CSV export
Break-Even Calculator
Model break-even units locally with fixed-cost line items, per-unit variable costs, pricing scenarios, safety margin, and target-profit planning.
- Fixed-cost and variable-cost line items
- Multi-price break-even and target-profit comparison
- Margin-of-safety summary, checklist, and CSV export
Budget Planner
Plan a monthly budget locally with category targets, savings-rate tracking, 50/30/20 comparison, and shareable summaries.
- Editable category budget table
- 50/30/20 target and cash-flow checks
- Checklist, summary, and CSV export
Retirement Planner
Project retirement savings locally with contribution planning, employer match, real-return assumptions, and income-gap checks.
- Retirement target and nest-egg projection
- Employer match and contribution-gap analysis
- Share-ready summary, yearly milestones, and CSV export
Paycheck Calculator
Estimate take-home pay locally with salary or hourly inputs, overtime, deductions, tax rates, and annualized comparisons.
- Salary or hourly pay modes
- Pretax, tax-rate, and deduction modeling
- Annualized comparison, summary, and CSV export
Sales Tax & VAT Calculator
Calculate sales tax or VAT locally with tax-inclusive or tax-exclusive pricing, editable line items, reverse totals, and receipt-ready summaries.
- Tax-exclusive and tax-inclusive modes
- Editable cart lines with taxable toggles
- Reverse total, checklist, summary, and CSV export
Electricity Cost Calculator
Estimate appliance energy use locally with tiered utility rates, fixed fees, standby load tracking, and monthly or annual bill summaries.
- Device-by-device kWh ledger
- Tiered rates, fixed fees, and tax modeling
- Top consumers, checklist, summary, and CSV export
Etsy Fee & Profit Calculator
Model Etsy listing, transaction, processing, Offsite Ads, and currency fees locally with take-home profit, target-price ladders, and share-ready summaries.
- Listing, transaction, processing, and ads fee stack
- Profit snapshot with target-price ladder
- Scenario comparison, checklist, summary, and CSV export
Calorie & Macro Planner
Estimate calories locally with TDEE, body-fat-aware BMR, goal targets, macro splits, meal plans, and weekly adjustment guidance.
- Metric or imperial body inputs
- Goal calories, macro splits, and meal distribution
- Checklist, summary, and CSV export
Pregnancy Due Date Planner
Estimate a due date locally from LMP, conception, IVF transfer, or a known due date, then review weeks, trimester, and milestone planning.
- LMP, conception, IVF, and known due-date modes
- Gestational age, trimester, and full-term window
- Milestone timeline, checklist, summary, and CSV export
PTO Planner & Vacation Balance Calculator
Project PTO locally with accrual or flat allowance rules, company holidays, planned trips, rollover risk, and monthly balance forecasts.
- Accrual or flat-allowance planning with rollover and cap rules
- Trip cost calculation that excludes weekends and company holidays
- Monthly projection table, checklist, summary, and CSV export
Pomodoro Timer & Focus Planner
Run local focus sessions with a task queue, custom work and break cycles, progress tracking, and a daily session log.
- Custom focus, short-break, and long-break cycles
- Task queue with pomodoro estimates and completion tracking
- Daily analytics, session log, and CSV export
Tip Calculator & Bill Splitter
Split a check locally with tip, tax, uneven shares, smart rounding, settle-up transfers, and a share-ready summary.
- Even or weighted group splits
- Tip, tax, rounding, and settle-up transfers
- Share summary and CSV export
Typing Speed Test & WPM Tracker
Run a local typing test with timed rounds, preset or custom passages, live WPM and accuracy, and a session log you can review or export.
- Timed tests with preset or custom passages
- Live WPM, accuracy, and trouble-word breakdown
- Recent sessions, summary, and CSV export
YAML Studio
Convert YAML and JSON locally, inspect multi-document files, audit paths, and export normalized output without sending configs anywhere.
- YAML and JSON conversion with local parsing
- Multi-document review and path inventory
- Normalized output, copy actions, and download export
Net Worth Tracker
Track net worth locally with editable assets and liabilities, category rollups, liquidity checks, and timeline snapshots.
- Editable asset and liability ledgers
- Liquidity, debt-ratio, and category rollup analysis
- Snapshot history, summary, and CSV export
EV Charging Cost Planner
Estimate EV charging cost locally with charge-session math, home vs public comparisons, time-by-charger previews, and gas-car savings.
- Session cost from battery size and SOC window
- Home, public, and blended driving-cost comparison
- Charge-time matrix, checklist, summary, and CSV export
Checklist Maker & Progress Tracker
Build local checklists with templates, bulk task import, owners, due dates, priority filters, and exportable progress summaries.
- Reusable templates and bulk task import
- Priority, owner, due-date, and status tracking
- Progress summary, checklist audit, and CSV export
Attendance Calculator & Class Planner
Track attendance percentage, see how many classes you can miss, model how many you must attend, and compare multiple subjects in one local dashboard.
- Current percentage and safe-miss math
- End-of-term planner with what-if forecast
- Multi-subject dashboard, summary, and CSV export
Web App Manifest Builder
Build a complete site.webmanifest locally with install metadata, icon planning, shortcuts, screenshots, and audit-ready output.
- Manifest JSON and HTML snippet export
- Icons, shortcuts, and screenshot planning
- Install-readiness audit and preview
GPA Calculator & Planner
Track semester GPA locally with credit-weighted courses, cumulative carry-over, weighted scale options, and target GPA planning.
- Semester and cumulative GPA math
- Weighted scale, honors, and AP course support
- Goal planner, checklist, and CSV export
Sales Commission Calculator
Model sales commission locally with flat or tiered rates, quota accelerators, split payouts, goal seeking, and export-ready summaries.
- Flat, tiered, and accelerator payout modeling
- Goal-seek revenue target plus next-deal impact
- Summary, checklist, and CSV export
Price Per Unit Calculator
Compare package sizes locally with tax and coupon adjustments, target-quantity planning, and a share-ready savings summary.
- Package-size normalization across units
- Tax, coupon, and target-quantity planning
- Savings summary, checklist, and CSV export
Travel Budget Planner
Plan trip costs locally with fixed and daily categories, per-traveler breakdowns, budget pacing, and a share-ready summary.
- Fixed, daily, and per-traveler cost modes
- Budget pace check with contingency and FX fee buffers
- Traveler comparison, summary, and CSV export
Moving Box Calculator & Packing Planner
Estimate boxes room by room, add packing buffer, check vehicle capacity, and build a costed moving plan locally.
- Room-by-room box and fragile-item estimates
- Buffer, supplies, vehicle-load, and cost planning
- Packing checklist, shareable summary, and CSV export