TAR → 7Z
Convert TAR bundles into compact 7Z archives.
Drop files here
or browse from your device
images · audio · video · documents · archives · Free: 200 MB per file · Pro: 5 GB
Your first conversion lands here automatically — saved on this device only, never uploaded.
100% Private
Runs in your browser. No upload.
Instant
No queue, no server roundtrip.
Offline-ready
Works after first load.
Repacking a TAR archive as 7Z is about who has to open it and how small it needs to be on the way there. 7Z (7-Zip archive) earns its place here: higher compression ratios and strong AES-256 encryption. TAR bundles files and their Unix permissions into one stream without compressing anything — which is why it is almost always paired with gzip.
TAR bundles files and their Unix permissions into one stream without compressing anything — which is why it is almost always paired with gzip.
Every file is unpacked and repacked, so the contents are bit-identical — only the compression method and resulting archive size change. Unix permissions and symlinks survive only in formats that record them, and encrypted archives need to be unlocked before repacking.
What you gain with 7Z: Higher compression ratios and strong AES-256 encryption.
Drop your TAR file above and Morphio decodes it locally, then re-encodes it as 7Z using WebAssembly + the browser's native codecs. Nothing is ever uploaded — your files stay on your device. Free supports batches of 5 files; Pro supports batches of 250, subject to your device's memory. See exactly how in-browser conversion works.
Open the TAR to 7Z page, drop your archive on the drop zone and press convert. Morphio runs a WebAssembly archiver that runs entirely on your machine, so the TAR data never leaves your device and no server ever receives a copy.
Entries are repacked without touching their contents, so checksums of the inner files stay valid. Converting TAR to 7Z only rewrites the container and encoding you asked for — the source file on your disk is never modified.
Yes. The free plan covers 10 conversions a day with files up to 200 MB and adds no watermark or sign-up. Morphio Pro ($5/month, or $29 once for lifetime access) removes the daily cap and raises the per-file limit to 5 GB.
No. The content is remapped from TAR into 7Z structurally, so nothing is re-compressed. Only features 7Z has no way to express are left behind.
Yes — Free supports batches of 5 files and 10 conversions per day; Pro supports batches of 250 with no daily conversion cap. Your device's memory can impose a lower practical limit. Only usage counts reach the server, never files.
No. The conversion runs entirely inside your browser, so the file never leaves your device. The page and the required decoder must load first; free usage-limit checks may require a connection.