# Discover Web Tools > 130+ free, browser-based tools for developers, SEOs, and digital teams. Every tool runs entirely client-side — nothing you paste or upload leaves your device. No signup, no accounts, no paywalls. Discover Web Tools is a directory of single-purpose web utilities (encoding, JSON, hashing, image conversion, SEO, text, and more) plus practical long-form guides. Tools are grouped into hubs; each tool has a dedicated page with examples, FAQs, and how-to steps. ## Tool hubs - [Developer Tools](https://discoverwebtools.com/developer-tools): HTML, CSS, JS, TypeScript, regex, and Markdown viewers, minifiers, validators, and converters. - [JSON Tools](https://discoverwebtools.com/json-tools): JSON formatting, validation, and conversion to CSV, XML, and YAML. - [Encoder / Decoder Tools](https://discoverwebtools.com/encoder-decoder-tools): Base64, URL, JWT, and image-to-Base64 encoding and decoding. - [Security & Hash Tools](https://discoverwebtools.com/security-and-hash-tools): MD5, SHA-1/256/512, HMAC, bcrypt, JWT, password and UUID generators. - [Image Tools](https://discoverwebtools.com/image-tools): WebP/PNG/JPG/ICO/SVG conversion, compression, and resizing. - [SEO Tools](https://discoverwebtools.com/seo-tools): meta tags, schema markup, robots.txt, sitemap, llms.txt, and SEO checklist generators. - [Text & Writing Tools](https://discoverwebtools.com/text-and-writing-tools): case converter, word counter, URL slug, reading-time estimator. - [Calculator Tools](https://discoverwebtools.com/calculator-tools): percentage, mortgage, and conversion calculators. - [Audio & Video Tools](https://discoverwebtools.com/audio-video-tools): MP3/MP4 conversion and text-to-speech. - [Legal & Policy Tools](https://discoverwebtools.com/legal-policy-tools): privacy policy, terms, disclaimer, and refund-policy generators. ## Popular tools - [Base64 Encoder](https://discoverwebtools.com/tools/base64-encoder): Encode text or files to Base64 in the browser. - [JSON Beautifier](https://discoverwebtools.com/tools/json-beautifier): Format and validate JSON instantly. - [JWT Decoder & Encoder](https://discoverwebtools.com/tools/decode-encode-jwt): Decode a JWT's header and payload, or sign a test token, client-side. - [Regex Tester](https://discoverwebtools.com/tools/regex-tester): Debug regular expressions with live match highlighting. - [SHA-256 Generator](https://discoverwebtools.com/tools/sha256-generator): Hash text or verify a checksum. - [bcrypt Generator](https://discoverwebtools.com/tools/bcrypt-generator): Hash passwords with a tunable cost factor. - [UUID Generator](https://discoverwebtools.com/tools/uuid-generator): Generate v4 (random) or v7 (time-ordered) UUIDs. - [Password Generator](https://discoverwebtools.com/tools/password-generator): Generate high-entropy passwords and passphrases. - [Image Compressor](https://discoverwebtools.com/tools/image-compression): Reduce image file size with adjustable quality. - [QR Code Generator](https://discoverwebtools.com/tools/qr-code-generator): Create QR codes for URLs and text. - [Meta Tags Generator](https://discoverwebtools.com/tools/meta-tags-generator): Generate SEO and Open Graph meta tags. ## Guides - [Blog](https://discoverwebtools.com/blog): How-to guides and comparisons for developers and SEOs. - [How to Decode a JWT Safely](https://discoverwebtools.com/blog/how-to-decode-a-jwt-safely): What's inside a JWT and when it's safe to decode one. - [MD5 vs SHA-256 vs bcrypt](https://discoverwebtools.com/blog/md5-vs-sha256-vs-bcrypt-which-hash): Which hash to use for passwords, integrity, and checksums. - [JSON to YAML Conversion Guide](https://discoverwebtools.com/blog/json-to-yaml-conversion-guide): When to convert and the indentation/type gotchas to avoid. - [UUID v4 vs v7](https://discoverwebtools.com/blog/uuid-v4-vs-v7-which-to-use): Choosing a UUID version for database keys vs public IDs. - [How to Generate a Strong Password](https://discoverwebtools.com/blog/how-to-generate-a-strong-password): Why length beats complexity. - [WebP vs PNG vs JPG](https://discoverwebtools.com/blog/webp-vs-png-vs-jpg-which-format): Choosing an image format for the web. ## About - [About](https://discoverwebtools.com/about-us): What Discover Web Tools is and who builds it. - [All tools](https://discoverwebtools.com/tools): Browse and search the full catalog.