Compress text with gzip or decompress gzip data online. Supports base64 and hex output formats. Free, fast, and privacy-first.
- Compress text to gzip and get raw bytes, Base64, or hex
- Decompress gzip from raw, Base64, or hex input
- Auto-detect compress vs decompress when possible
- Useful for HTTP payloads, logs, or small archives
- All processing in browser; no data sent to server
Inspect gzip-compressed API responses or logs, or produce compressed payloads for testing. Handles the encoding formats you actually see.
Try Gzip Compress/Decompress at Spoold →
Spoold is a free developer toolbox that detects what you paste and opens the right tool.
- No sign-up – Use every tool without an account.
- Runs in your browser – Your data stays on your device; we don’t store or log your input.
- Paste and go – Paste JSON, HTML, JWT, curl, Base64, or any text on the homepage and Spoold suggests the right tool.
- One place for many tools – JSON formatter, JWT decoder, Base64, UUID generator, regex tester, curl-to-code, and more.