Coding Tools
Encoders, decoders, formatters, and hashing utilities.
Base64 Encoder/Decoder
Encode and decode Base64 text and files, URL-safe variant included.
URL Encoder/Decoder
Percent-encode and decode URLs or just components.
HTML Encoder/Decoder
Escape and unescape HTML entities in any string.
JSON Tree Viewer
Validate, format, and interactively explore any JSON document.
HTML Minifier
Shrink HTML by removing whitespace and comments.
CSS Minifier
Minify CSS for faster page loads.
JavaScript Minifier
Compress JavaScript safely with Terser.
HTML Formatter
Beautify compressed HTML into readable markup.
CSS Formatter
Pretty-print messy CSS with consistent indentation.
JavaScript Formatter
Format JavaScript with Prettier in the browser.
URL Slug Generator
Turn a title into a clean, SEO-friendly URL slug.
MD5 Hash Generator
Compute the MD5 digest of any string in the browser.
SHA1 Hash Generator
Compute SHA-1 digests for checksums and legacy systems.
SHA256 Hash Generator
Compute SHA-256 digests for integrity checks and signing.
SHA224 Hash Generator
Compute SHA-224 digests in the browser.
SHA384 Hash Generator
Compute SHA-384 digests in the browser.
SHA512 Hash Generator
Compute SHA-512 digests for high-assurance checksums.
JWT Encoder/Decoder
Decode JWT header and payload, verify signatures locally.
React Native Shadow Generator
Generate iOS shadow props and Android elevation side by side.
Code to Image Converter
Turn code snippets into beautiful shareable images.
A developer's utility belt: encoders, decoders, formatters, minifiers, and hash generators.
Developers reach for utilities like Base64 encoders, JSON formatters, and hash generators dozens of times a week. Our coding tools replace the ad-heavy sites that usually fill those searches. Every utility runs client-side, returns results instantly, and supports large inputs without truncation. We cover the full Base64/URL/HTML encoding family, a JSON tree viewer with collapse and search, HTML/CSS/JS formatters and minifiers, the MD5/SHA family of hash generators, a JWT decoder that pretty-prints header and payload, a URL slug generator for content workflows, and a Code-to-Image converter for sharing snippets on social media. Because the tools run in your browser, you can decode tokens and hash passwords without worrying that the input is being logged.
Frequently asked questions
- Are JWT tokens and passwords sent to your server?
- No. Every coding tool runs in your browser. Paste a JWT here and it is decoded locally; the string is never uploaded.
- Can MD5 and SHA1 still be used for security?
- No. Both are considered broken for cryptographic purposes and should not be used to store passwords or sign data. They are still useful for checksums and non-security identifiers. Prefer SHA-256 or SHA-512 for new work.
- How does URL encoding differ from HTML encoding?
- URL encoding replaces reserved characters with percent-escapes so they survive transport inside a URL. HTML encoding replaces characters like < and & with named or numeric entities so they render as text rather than being parsed as markup.
- What's the difference between minify and format?
- A minifier removes whitespace and shortens identifiers to reduce file size for shipping. A formatter adds whitespace and indentation to make code easier to read. You typically use a formatter in your editor and a minifier at build time.