Developer Tools
38 free tools
Formatters, encoders, hash generators and debugging utilities for developers.
Format and beautify minified JSON with proper indentation.
Open tool →Validate JSON and pinpoint syntax errors instantly.
Open tool →Strip whitespace from JSON to shrink payload size.
Open tool →Convert a JSON array of objects into CSV format.
Open tool →Convert CSV data with headers into a JSON array.
Open tool →Encode any text to Base64 (Unicode-safe).
Open tool →Decode Base64 strings back to readable text.
Open tool →Escape HTML special characters into safe entities.
Open tool →Convert HTML entities back to readable characters.
Open tool →Generate the MD5 hash of any text.
Open tool →Generate the SHA-1 hash of any text.
Open tool →Generate the SHA-256 hash of any text.
Open tool →Generate the SHA-512 hash of any text.
Open tool →Calculate the CRC32 checksum of any text.
Open tool →Generate a secure bcrypt hash for passwords.
Open tool →Generate the Whirlpool hash of any text.
Open tool →Convert JSON into PHP serialized format.
Open tool →Convert all applicable characters to HTML entities (server-grade).
Open tool →Generate random version-4 UUIDs.
Open tool →Decode a JWT and inspect its header and payload (no verification).
Open tool →Convert text into hexadecimal byte values.
Open tool →Convert hexadecimal byte values back to text.
Open tool →Apply the classic ROT13 letter substitution cipher.
Open tool →Encrypt or decrypt text with a Caesar shift cipher.
Open tool →Minify HTML by removing comments and extra whitespace.
Open tool →Minify CSS to reduce stylesheet size.
Open tool →Light-minify JavaScript by stripping comments and whitespace.
Open tool →Format SQL queries with keywords on new lines.
Open tool →Convert Unix timestamps to dates and back.
Open tool →Convert colors between HEX, RGB and HSL.
Open tool →Test regular expressions against sample text and see matches.
Open tool →Convert Markdown to HTML and preview the output.
Open tool →Validate and analyze IPv4 addresses.
Open tool →Check card numbers with the Luhn algorithm and detect the card type.
Open tool →Generate 301 redirect rules for .htaccess.
Open tool →Translate a cron expression into plain English so you know when it runs.
Open tool →Break a URL or query string into readable key/value parameters.
Open tool →Convert numbers between binary, octal, decimal and hexadecimal.
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