One local workspace
Extract, clean, validate, compare and export without sending the working set to the backend.
Useful Tools Without Uploading Your Data
Compare, clean, calculate and validate in one privacy-first workspace. Browse a focused category instead of loading thousands of cards at once.
No accountNo working-data uploadMobile friendlyClear exports
SEO & Webmaster
Build and validate the signals search engines and social previews actually read.
- Meta Tag Generator
- UTM Campaign URL Builder
- SEO Slug Generator
Developer & Data
Format, convert, encode and inspect data locally in your browser.
- JSON Formatter & Validator
- JSON Minifier
- Base64 Encoder & Decoder
Text & List Tools
Clean, compare and measure content without uploading working data.
- List Compare — Compare Two Lists
- Remove Duplicate Lines
- Sort Lines
Media & Link Tools
Calculate dimensions, transfer time, bitrate and storage before processing media.
- Video File Size Calculator
- Download Time Calculator
- Aspect Ratio Calculator
Browser & Privacy
Understand the current browser and create secure local values without tracking.
- Browser Capability Report
- Screen Resolution Checker
- User Agent Inspector
Design & CSS
Generate practical colors and CSS with a live local preview.
- Color Converter
- CSS Gradient Generator
- WCAG Contrast Checker
Unit Converters
Convert common measurements with explicit factors, formulas and examples.
- Bytes to Kilobytes Converter
- Meters to Kilometers Converter
- Milliseconds to Seconds Converter
Everyday Calculators
Solve practical percentage, statistics, fuel and planning calculations locally.
- Percentage Calculator
- Secure Random Number Generator
- Arithmetic Mean Calculator
Crypto & Money
No wallet connection: model cryptocurrency positions, fees, capacity and planning scenarios locally with explicit formulas, no custody or trading claims.
- Crypto Position Value Calculator
- Crypto Profit and Loss Calculator
- Crypto Average Entry Price Calculator
Generators & Random
Create secure values, fair selections, teams, simulations and lottery-style number draws locally with unbiased browser randomness.
- Strong Password Generator
- Alphanumeric Password Generator
- No-Ambiguous Password Generator
Local File Tools
Inspect, verify and transform selected files directly in your browser without uploading their contents or using downloader workers.
- Private SQLite Database Viewer
- Private Read-only SQLite Query
- Private SQLite Table to CSV
Honest SEO
Only working, quality-checked tools enter the sitemap. Disabled tools disappear from navigation and indexing together.
Safe by default
No arbitrary server-side URL fetching, no open relay and no silent storage of pasted content.
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