Free
CyberChef
Open SourceEncoding & Decoding
The Cyber Swiss Army Knife: encode, decode, hash and transform data in the browser.
encoderdecoderhashbase64
Encoding & Decoding•Web-Based•7 tools
Best Web-Based Encoding & Decoding Tools (7 Curated)
Discover the 7 best browser-based tools for encoding & decoding. Run directly in any modern browser without local installation. Curated, compared, and updated for developers.
Quick Comparison (7 Tools)
| Tool | Pricing | Platforms | Top Strength | Link |
|---|---|---|---|---|
| CyberChef | free | web | The Cyber Swiss Army Knife: encode, decode, hash and transform data in the browser. | Details → |
| Base64 Guru | free | web | Base64 encode and decode for text, files, URLs and images. | Details → |
| Base64 Decode | free | web | Simple, fast online Base64 decoder and encoder. | Details → |
| URLEncoder | free | web | Encode and decode URLs and query strings online. | Details → |
| Unicode Table | free | web | Browse and search all Unicode characters by block and codepoint. | Details → |
| JWT.io | free | web | The official JSON Web Token site: decode, debug and find libraries. | Details → |
| QRCode Monkey | free | web | Free QR code generator with custom colors, shapes and logos. | Details → |
Free
Converters · Encoding & Decoding
Base64 encode and decode for text, files, URLs and images.
base64encoderdecoder
Free
Converters · Encoding & Decoding
Simple, fast online Base64 decoder and encoder.
base64decoderencoder
Free
Converters · Encoding & Decoding
Encode and decode URLs and query strings online.
urlencoderdecoder
Free
Converters · Encoding & Decoding
Browse and search all Unicode characters by block and codepoint.
unicodecharactersreference
Free
JWT · Encoding & Decoding
The official JSON Web Token site: decode, debug and find libraries.
jwttokenauthdebugger
Free
QR & Barcode · Encoding & Decoding
Free QR code generator with custom colors, shapes and logos.
qrgeneratorbarcode