Pick a target format and convert any input archive to it. Handles ZIP ↔ TAR.GZ ↔ GZIP in any direction. Browser-native, zero upload, no command line.
Per-job file size, entry count, and batch caps for Format Converter. Limits apply to every Archive tool in JAD Apps; upgrade for larger uploads and bigger batches.
| Tier | Max archive size | Max entries / archive | Max files per batch |
|---|---|---|---|
| Free | 47.7 MB | 500 | 1 |
| Pro | 476.8 MB | 50,000 | 20 |
| Developer | 1.86 GB | 50,000 | 20 |
Drop any input archive (ZIP, TAR.GZ, GZ, or TAR)
Choose your target format from the dropdown — ZIP, TAR.GZ, or GZIP
Download the converted archive — content unchanged, format swapped
0 bytes uploaded. Universal Archive Format Converter runs entirely in your browser using fflate, zip.js, and libarchive WASM. Your archive files never leave your device.
Yes — every conversion path preserves the entry tree exactly. Only timestamps and Unix mode bits may not survive a ZIP round-trip due to format differences.
Not yet — 7Z write support is planned (see ZIP to 7Z). For maximum compression today, choose TAR.GZ; level-9 GZIP often matches 7Z to within 5–10% on text-heavy content.
It recompresses — every entry's data is decompressed and re-encoded under the target format's algorithm. This is necessary because ZIP uses DEFLATE while TAR uses GZIP/Brotli per-stream.
Repackage any ZIP archive as TAR.GZ — the standard for Linux distributions, Docker layers, and CI pipelines. Powered by fflate, runs entirely in your browser.
Open toolRepackage TAR.GZ as ZIP for users on Windows, macOS Finder, or any environment without tar installed. Browser-native, zero upload, lossless content transfer.
Open toolTake a single-file GZIP (.gz) and wrap it inside a ZIP container — useful when sharing with users whose tools don't recognize .gz directly.
Open tool