Free online tools for word games, developers and writers
FastUtil is a growing set of 14 fast, no-login tools: solve anagrams and Wordle puzzles, find Scrabble words, convert JSON to CSV, decode tokens, count words and generate strong passwords. Everything runs in your browser, so what you type stays on your device.
- Private: input is processed locally
- Instant results, no sign-up
Popular tools
- Anagram SolverEnter your letters and find every word that uses all of them, with support for blank tiles.
- Wordle SolverEnter your guesses and the colours you got back to narrow down the remaining possible answers.
- Scrabble Word FinderFind the highest-scoring play for your rack, with starts-with, ends-with and contains filters.
- JSON to CSV ConverterConvert JSON arrays and objects to clean, correctly escaped CSV for Excel or Google Sheets.
Word Game Tools
Solvers and finders for anagrams, Scrabble, Wordle and crosswords.
- Anagram SolverEnter your letters and find every word that uses all of them, with support for blank tiles.
- Word UnscramblerUnscramble letters into every possible word, grouped by length with Scrabble point values.
- Scrabble Word FinderFind the highest-scoring play for your rack, with starts-with, ends-with and contains filters.
- Wordle SolverEnter your guesses and the colours you got back to narrow down the remaining possible answers.
- Crossword SolverFind words that fit a pattern such as c?o??w?rd, with must-contain and exclude-letter filters.
Developer Tools
Convert, encode and decode the formats you meet every day.
- JSON to CSV ConverterConvert JSON arrays and objects to clean, correctly escaped CSV for Excel or Google Sheets.
- Base64 Encoder & DecoderEncode text to Base64 or decode Base64 back to text, with full Unicode and URL-safe support.
- URL Encoder & DecoderPercent-encode or decode URLs and query strings, and break a URL into its parts.
- Unix Timestamp ConverterConvert epoch timestamps to readable dates and dates back to timestamps, in any common unit.
- JWT DecoderDecode a JSON Web Token locally to read its header, payload and expiry without sending it anywhere.
Text & Writing Tools
Count, clean up and format text for writing and design work.
- Case ConverterSwitch text between UPPER, lower, Title, Sentence, camelCase, snake_case, kebab-case and more.
- Word & Character CounterCount words, characters, sentences and paragraphs, estimate reading time and see top keywords.
- Lorem Ipsum GeneratorGenerate placeholder paragraphs, sentences or words for mock-ups and templates.
Security Tools
Generate strong credentials locally, without an account.
Why people use FastUtil
Your data stays with you
Converters, decoders and generators run as JavaScript in your own browser tab. We never receive the JSON, tokens, text or passwords you work with.
Built to be correct
CSV output is properly escaped, Base64 handles Unicode, passwords come from the browser’s cryptographic random generator, and Wordle filtering understands repeated letters.
Explained, not just provided
Each tool page explains how it works, where it is useful and what its limits are, so you can trust the result and understand it.