My HTML tools

A collection of standalone, client-side web tools, heavily inspired by tools.simonwillison.net.

Most of these tools are "vibe coded"—built through quick iterations and prompting with LLMs.

All of these tools run entirely in your browser. No data is sent to a server unless otherwise mentioned.

• Anagram Finder

  Find anagrams from a dictionary wordlist and narrow them by fixing letters in specific positions.

  Last updated: 2026-04-20
• Base64 Encode/Decode

  Convert text to Base64 and vice versa, with UTF-8 support.

  Last updated: 2026-04-20
• Case Converter

  Easily change text between UPPERCASE, lowercase, Sentence case, Title Case, snake_case, and camelCase.

  Last updated: 2026-04-13
• JWT Decoder & Encoder

  Decode and encode JSON Web Tokens (JWTs) entirely in your browser. No data is sent to a server.

  Last updated: 2026-04-20
• Unix Timestamp Converter

  Convert Unix timestamps to readable dates. Detects and handles millisecond timestamps after year 2100.

  Last updated: 2026-04-13
• Word Counter

  A simple tool to count words and characters in text.

  Last updated: 2026-04-13