Your data stays in the browser.
devswiss.tools gives you UUID, Base64, XML, hash, and cron utilities without sending inputs to a server.
Available developer tools
Generate UUIDs, encode Base64 text, format XML, create hashes, and build cron expressions directly in the browser.
UUID Generator & Validator
Generate UUID versions 1, 3, 4, 5, and 7 or validate a pasted UUID instantly.
Base64 Encoder & Decoder
Encode plain text or decode Base64 safely, including Unicode content.
Hash Generator
Create MD5, SHA-1, SHA-256, and SHA-512 hashes entirely in the browser.
Bcrypt Hash Generator
Generate salted bcrypt password hashes locally with adjustable rounds from 1 through 20.
Cron Expression Generator
Build 5-field or 6-field cron expressions and read them as plain language.
Timestamp Converter
Explain Unix timestamps or convert date and time values into seconds or milliseconds locally.
Regex Tester
Explain Java or PL/SQL regex patterns, then test them against sample text with honest browser-safe feedback.
XML Formatter
Beautify XML, minify it, convert it to JSON, and move files in or out locally.