Base64 decoder
Decode Base64 into valid UTF-8 text.
Developer toolsFree
YOUR NEXT TASK, SIMPLIFIED
Free Online Developer Utilities
Use small utilities for common formatting and conversion tasks. These operations run within the visible server limits; do not paste production secrets or confidential credentials into a general-purpose tool.
14 tools for you
Base64 encoder
Encode UTF-8 text using Base64.
Developer toolsFree
Hash generator
Calculate SHA-256, SHA-512 or MD5 checksums.
Developer toolsFree
HEX to RGB
Convert HEX colors to RGB.
Developer toolsFree
JSON formatter
Validate and pretty-print JSON data.
Developer toolsFree
JSON validator
Find invalid JSON before it reaches your application.
Developer toolsFree
Markdown editor
Preview Markdown and export safe HTML.
Developer toolsFree
Password generator
Generate strong passwords using secure randomness.
Developer toolsFree
Regex tester
Test a regular expression against text with bounded server limits.
Developer toolsFree
Timestamp converter
Convert Unix timestamps into readable UTC dates.
Developer toolsFree
URL decoder
Decode a URL-encoded component.
Developer toolsFree
URL encoder
Safely encode a URL component.
Developer toolsFree
UUID generator
Generate cryptographically random version 4 UUIDs.
Developer toolsFree
XML formatter
Validate and format XML without external entities.
Developer toolsFree
Before you start
- JSON and XML tools validate syntax; they do not verify that data meets an external business schema.
- Hash tools generate checksums. MD5 is a compatibility checksum and should not be used to store passwords.
- Regex uses PHP PCRE syntax with bounded work and result counts. Timestamp output uses UTC.