A curated collection of free browser-based tools for developers, writers, students and everyday users. No signup, no tracking.
Count words, characters, sentences and reading time in real time. Free forever.
Count characters for Twitter, Instagram, SMS and LinkedIn. Platform limits shown live.
Flesch-Kincaid reading ease score and grade level for any text instantly.
UPPERCASE, lowercase, camelCase, snake_case, Title Case and more in one click.
Generate UUID v1, v4, v5, v7, GUID and Nil UUIDs. RFC 9562 compliant. uuidcore.com
Check how strong your password is instantly. 100% client-side. passwordstrength.net
Decode Base64 strings and files in your browser. base64decode.tools
Encode text or files to Base64 format instantly. base64encode.tools
URL encode and decode strings and query parameters. urlencodedecode.com
Format, validate, minify and convert JSON in your browser. jsontools.tools
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes from any text or file. hashgenerator.tools
Calculate area for rooms, floors and land. thesquarefootagecalculator.com
Calculate percentages, percentage change and more. bestpercentagecalculator.net
Calculate exact age in years, months and days from any date. theagecalculator.net