Developer Tools Compressor

Free online developer utilities — hash calculator, Base64 encoder, MIME detector, JSON formatter. Choose a tool below to get started.

File Hash Calculator

Generate SHA-1, SHA-256, SHA-512 hashes for files

Base64 Encoder

Encode and decode Base64 strings

MIME Detector

Detect file MIME type from content

Hex Viewer

View file content in hexadecimal

JSON Formatter

Format and validate JSON data

Online Developer Tools Compression Tools

Open Compressor offers a complete suite of Developer Tools compression tools. All tools are free to use with no registration required. Files up to 100MB can be compressed directly in your browser for maximum privacy and speed.

How to Compress Developer Tools Files

Select a tool above, upload your file, adjust compression settings, and click "Compress Now". Your compressed file will be ready for download in seconds.