CONVERT
APK → 7Z
Fast, secure APK to 7Z conversion. No registration required.
DRAG. DROP. DONE.
Upload any file and our engines will handle format detection automatically.
Max 100 MB · Free plan · No signup required
Convert to:
Detecting available formats...
Uploading...
Processing your file...
APK is an archive format that bundles multiple files into a single compressed container. Reaching a 7Z from there is one hop. APK to 7Z conversion is the fastest path when the platform or tool you are shipping to does not speak APK. Instead of asking every recipient to install a decoder, produce a 7Z once and hand them something their OS opens natively. Technical note: APK is an archive format that bundles multiple files into a single compressed container. Compare that with 7Z is the 7-Zip archive format, offering higher compression ratios than ZIP via LZMA.
Android Package
Source formatAPK (Android Package Kit) is the package format used by Android for distributing and installing mobile applications. It is a ZIP archive containing compiled code (DEX files), resources, assets, certificates, and the Android manifest.
7-Zip Archive
Target format7z uses the LZMA2 compression algorithm to achieve significantly better compression ratios than ZIP. It is open-source and supports strong AES-256 encryption.
Why convert APK to 7Z
A 7Z often compresses the same content smaller than a APK at the same strength setting, thanks to more modern codecs. For distribution over bandwidth-limited channels — email, chat apps, CDN delivery — the size difference matters.
HOW TO CONVERT
APK → 7Z
Provide the APK
Drag-and-drop the archive or pick it from your computer. We accept up to 100 MB on the free tier.
Stream-convert
The APK is decompressed and re-compressed into 7Z in a single pipeline stage — no temporary extracted folder.
Retrieve the output
Click to download the 7Z. File structure, timestamps and permissions match the original exactly.
Common Use Cases
Legacy format rescue
Re-archive decades-old APK collections into 7Z before the APK tooling disappears from modern package managers.
Cloud storage optimisation
7Z tends to compress better than APK on text-heavy payloads — fewer bytes stored means lower monthly costs.
CI/CD artefact pipelines
Build agents publish artefacts as 7Z when downstream jobs consume 7Z natively; avoid an extra extract-and-rezip step.
Mobile sharing
Phone archive apps handle 7Z out of the box but may prompt the user to install extra software for APK.
Quality & Compatibility
Compressed size can go up or down between APK and 7Z depending on the codec and the level — modern LZMA2/Zstd usually beats older Deflate on text, while already-compressed content (images, video) changes little. We default to a balanced level; Advanced options expose the full range.
Tips for Best Results
- If the APK is password-protected, we will ask for the password during upload; the resulting 7Z is emitted with encryption too if the format supports it.
- When the 7Z has to fit a strict upload cap, split into multi-volume archives in Advanced — several smaller 7Z parts are often accepted where a single large one is rejected.
- For distribution bundles, include a short README at the root of the 7Z so recipients know what the archive contains without extracting it.
Frequently Asked Questions
Frequently Asked Questions
Yes. The free tier accepts files up to 100 MB without registration, email capture or watermarks. Paid plans raise the size cap, enable batch conversions and provide a REST API for automation, but nothing on the free tier is quality-limited — the output is exactly the same as on any paid plan.
Yes — because APK and 7Z use different compression codecs, every entry is decompressed from the APK and re-compressed for the 7Z. The uncompressed data is identical on both sides, and the re-compression happens entirely inside our processing container.
Uploads run over HTTPS, files are processed in isolated containers, and both the source APK and the 7Z output are auto-deleted within two hours. No account is required, file contents are never logged, and KaijuConverter does not use uploads for AI training. The paid plan adds a signable data-processing agreement for regulated workflows.
Usually yes, modestly, when the original APK used an older codec like Deflate. Against modern LZMA2 / Zstd 7Z containers expect 10-30% savings on mixed content and almost no change on pre-compressed payloads. Advanced → compression level lets you trade speed for ratio.
Most files finish in well under a minute. Small images and documents are typically ready in a few seconds; large video or audio files scale roughly with duration. Upload speed from your network is usually the dominant factor, not server time.
Yes. Provide the password during upload; we use it only to decrypt inside the processing container and never log or persist it. The resulting 7Z can be re-encrypted with a password of your choice (AES where the target format supports it).
Secure & Private Conversion
Your files are encrypted during transfer, processed in isolated containers, and automatically deleted within 2 hours. We never read, share, or store your data.