What source formats can I convert from?

ZIP, 7Z, TAR, RAR, or ISO — auto-detected from the file's actual content, not just its extension.

Which target format should I choose?

ZIP for the most universal compatibility, 7Z for the strongest compression (smallest output), or TAR if a specific Linux/macOS workflow expects it.

Is my archive uploaded anywhere?

No — extraction and repackaging both happen entirely inside your browser using a real 7-Zip build compiled to WebAssembly.

Does this preserve folder structure from the source archive?

Yes — the internal file and folder structure carries over into the converted archive.

Can I convert to GZIP with this tool?

No — GZIP compresses only a single file at a time, so it doesn't fit this tool's multi-file repackaging model. Use the TAR.GZ Creator tool if you specifically need a .tar.gz output.

Free Online Archive Format Converter

Convert Between ZIP, 7Z, and TAR Formats

Need to use Archive Format Converter right now?

Different tools and platforms expect different archive formats — a system that only accepts ZIP, a workflow built around TAR, or wanting 7Z's stronger compression instead of ZIP's simpler structure. This tool extracts a source archive and repacks its contents into whichever target format you choose, using a real 7-Zip build compiled to WebAssembly.

No sign-upNo uploads 100% free

Drop a ZIP, 7Z, TAR, RAR, or ISO file

Processed locally in your browser — never uploaded

Convert to

Extracts the source archive (ZIP, 7Z, TAR, RAR, or ISO) and repacks its contents into your chosen format, using a real 7-Zip build compiled to WebAssembly, entirely in your browser.

Other tools in Archive Tools

ZIP Extractor ZIP Creator TAR Extractor GZIP Extractor 7Z Extractor RAR Extractor

Features

Runs entirely in your browser
Privacy-first — your data is never uploaded
Real-time, instant results
100% free, no sign-up required
Works on desktop, tablet, and mobile
No installation needed

Who uses this tool?

IT adminsDevelopersOffice workersStudents

People also search for

Convert Between Archive Formats ZIP to 7z Converter RAR to ZIP Converter TAR to ZIP Converter Switch an Archive's Format

About Archive Format Converter

The source archive can be ZIP, 7Z, TAR, RAR, or ISO — this tool auto-detects the format from the file's actual content (not just its extension) using 7-Zip's own format detection, the same reliable detection the desktop application uses.

Target formats are ZIP, 7Z, or TAR — covering the three most commonly needed archive formats for repackaging. Converting to 7Z generally produces the smallest output thanks to its strong LZMA2 compression, while ZIP remains the most universally recognized format.

Everything runs locally: extraction and repackaging both happen entirely inside your browser's WebAssembly sandbox, with the source archive never uploaded anywhere.

How it works

Upload your source archive. ZIP, 7Z, TAR, RAR, or ISO.
Choose your target format. ZIP, 7Z, or TAR.
Download the converted archive. Contents repackaged in your chosen format.

Examples

Converting a RAR to ZIP for wider compatibility

Input

archive.rar

Output

archive.zip with identical contents