# Beste UI

> Beautiful, accessible blocks, pieces and components for shadcn/ui and Tailwind CSS, built for React and Next.js. Install one with the shadcn CLI and the code is yours to edit: no runtime dependency, nothing to upgrade.

Markdown rendition of https://ui.beste.co/tools/category/encoding. Every page on the site has one: add `.md` to any address, or send `Accept: text/markdown`.

Whole catalog for LLMs: https://ui.beste.co/llms.txt. Registry index: https://ui.beste.co/r/registry.json

---
[tools](/tools)/encoding

# Encoding & security

Base64, hashes, tokens and identifiers, computed locally.

[Base64 encoder and decoderEncode text to base64 or decode it back, with UTF-8 handled correctly and a URL-safe variant for tokens and query strings.](/tools/base64)[Hash generatorHash any text with MD5, SHA-1, SHA-256, SHA-384 and SHA-512 at once, in hex or base64, computed in your browser.](/tools/hash-generator)[HMAC generatorSign a message with a shared secret and read the HMAC in hex or base64, with the Web Crypto code to verify it on the other side.](/tools/hmac-generator)[HTML entity encoderEscape markup so it renders as text, or decode entities back, with an option to escape every non-ASCII character for older pipelines.](/tools/html-entities)[JWT decoderPaste a JSON Web Token and read its header, payload and expiry. Decoding only, in your browser, with no secret asked for and nothing sent anywhere.](/tools/jwt-decoder)[Password generatorGenerate passwords from your browser's cryptographic random source, with the character sets you choose and the entropy shown as you change them.](/tools/password-generator)[URL encoder and decoderPercent-encode a value or decode one back, choosing between a single query value and a whole URL, with the parts listed out when the input is a URL.](/tools/url-encoder)[UUID generatorGenerate UUID v4, time-sortable UUID v7 or Nano IDs in bulk, from your browser's own cryptographic random source.](/tools/uuid-generator)

## Ship the interface, keep the code.

New blocks, pieces and components every week. Install one with a command and it is yours to edit. No runtime dependency, no upgrade path to fight.

[Browse the libraryBrowse the library](/blocks)[See pricingSee pricing](/pricing)

### Library

* [Blocks](/blocks)
* [Pages](/pages)
* [Pieces](/pieces)
* [Components](/components)
* [Search](/search)

### Learn

* [Docs](/docs)
* [AI & MCP](/docs/mcp)
* [Blog](/blog)
* [Free tools](/tools)
* [What's new?](/changelog)
* [Website Builder](https://beste.co)

### More

* [Pricing](/pricing)
* [Referrals](/referrals)
* [License](/license)
* [GitHub](https://github.com/beste-co/beste-ui)

### Shadcn Blocks

* [Shadcn Hero Blocks](/blocks/hero)
* [Shadcn Feature Blocks](/blocks/feature)
* [Shadcn Pricing Blocks](/blocks/pricing)
* [Shadcn CTA Blocks](/blocks/cta)
* [Shadcn FAQ Blocks](/blocks/faq)
* [Shadcn About Blocks](/blocks/about)
* [Shadcn Stats Blocks](/blocks/stats)
* [Shadcn Footer Blocks](/blocks/footer)
* [Shadcn Navigation Blocks](/blocks/navigation)
* [Shadcn Auth Blocks](/blocks/auth)
* [Shadcn Ecommerce Blocks](/blocks/ecommerce)
* [Shadcn Portfolio Blocks](/blocks/portfolio)
* [Shadcn Showcase Blocks](/blocks/showcase)
* [Shadcn Careers Blocks](/blocks/careers)
* [Shadcn Onboarding Blocks](/blocks/onboarding)
* [Shadcn Coming Soon Blocks](/blocks/coming-soon)
* [Shadcn Post Blocks](/blocks/post)
* [Shadcn Legal Blocks](/blocks/legal)
* [Shadcn Workflow Blocks](/blocks/workflow)
* [Shadcn News Blocks](/blocks/news)

© 2026, [Beste](https://beste.co). All rights reserved.