Developer Tools
Interactive Regex Tester
Test regular expressions against your text interactively with match highlighting.
Processing Mode
100% Client-side. No file chunks are uploaded; conversion happens in your browser's RAM via WASM.
Privacy & Speed
Zero latency from uploads. Secure by design for sensitive financial or personal documents.
Local Hardware
Leverages your device's CPU/GPU for rendering and processing. Faster than traditional cloud conversion.
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JSON Formatter / Validator
Format, validate, and beautify messy JSON strings with robust error reporting.
JWT Decoder
Decode and inspect JSON Web Tokens safely without sending payloads to any server.
Base64 Encoder / Decoder
Convert plain text or files to Base64 strings, and vice versa.
Color Converter (HEX/RGB/HSL)
Convert colors between HEX, RGB, HSL, and CMYK with a live preview.
Explore Other Toolkits
PDF Tools
Merge PDF
Combine multiple PDF files into one single document locally in your browser.
Data & Spreadsheets
CSV to JSON
Convert CSV data to JSON format for web development and data analysis.
Media Lab
GIF Maker
Convert MP4 or MOV videos into high-quality animated GIFs locally.
Smart Images
Background Remover (Color-Based)
Remove flat or near-solid backgrounds using color-distance detection, all processed locally.