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Supports: FILE
Bundle one file — or a whole batch — into a single ZIP archive that opens on any device. ZIP is the one archive format Windows, macOS, Linux, iOS, and Android all read without extra software, which makes it the safest choice when you need to email, upload, or hand off files and don't know what the recipient runs. The bundling is lossless: your bytes are preserved exactly, just packed (and modestly shrunk on text and documents) into one tidy .zip.
.zip, or "Individual Archives" to wrap each file in its own ZIP.ZIP trades maximum compression for universal reach. If you only care about the smallest file and the recipient can install software, 7z packs tighter; ZIP wins when "it has to open everywhere" matters more.
| Property | ZIP | 7z | RAR |
|---|---|---|---|
| Introduced | 1989 (PKWARE) | 1999 (7-Zip) | 1993 (RARLAB) |
| Default compression | DEFLATE | LZMA2 | RAR proprietary |
| Compression ratio | Good | Best | Very good |
| Native OS support | Windows, macOS, Linux, iOS, Android | Needs 7-Zip / app | Needs WinRAR / app |
| Recovery records / split volumes | No | Volumes only | Yes |
| Encryption | ZipCrypto / AES‑256 | AES‑256 | AES‑256 |
| License | Open / public-domain spec | Open (LGPL tool) | Proprietary |
| Best for | Sharing, email, broad compatibility | Smallest size, archival | Multi-part sets, error recovery |
It depends on the content. Text, documents, spreadsheets, code, and uncompressed images (BMP, TIFF) shrink meaningfully because DEFLATE finds repetition in them. Already-compressed media — JPEG, PNG, MP4, MP3, and most PDFs — are near their entropy limit, so a ZIP of them is often only a few percent smaller. The win there is bundling many files into one, not raw size.
"Single Archive" puts every file you uploaded inside one .zip, which is what you want for emailing a project or a photo set as a single attachment. "Individual Archives" produces a separate .zip for each input file — useful when each file needs to travel on its own or to its own recipient.
Yes. ZIP is a lossless container, so unzipping reproduces every original file byte-for-byte. A zipped photo or video is not re-encoded or degraded — it's the exact same file, just wrapped. In our testing, a batch of three text files (1.2 MB total) packed to roughly 0.4 MB, while a folder of JPEGs barely changed size, which matches how DEFLATE behaves on each.
There's no hard format limit — ZIP supports very large archives via the ZIP64 extension. In practice the real constraint is upload size and time over your connection, not the format. Large multi-gigabyte uploads simply take longer to transfer before processing begins.
On almost any modern device, yes. Windows (built-in since the early 2000s), macOS, Linux desktops, iOS, and Android all create and extract ZIP files natively with no extra software, which is exactly why ZIP remains the default sharing format. Need to go the other way? Use the Extract ZIP tool to unpack one.
If the recipient can install 7-Zip and you want the tightest possible size, convert to 7z instead — LZMA2 typically beats DEFLATE on compressible data. Choose ZIP when you can't guarantee what software the other side has, since 7z and RAR usually need a separate app to open.
Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. There's no sign-up, no watermark, and your files are never shared or made public.