Batch compress and convert images. No uploads.

One quality setting, already chosen for you

Most compression tools open with a slider and leave the decision to you, which means guessing. Quality 90 costs several times the bytes of quality 65 for a difference you may not see, while very low quality starts to smear detail. VidSmaller uses one conservative default so every batch stays predictable.

Because everything runs locally, you can shrink a PNG for the web, cut a phone photo down for email, or prepare a batch for a CMS without ever sending a file to a server.

Compress JPG, PNG and WebP without losing visible quality

JPG and HEIC photos are re-encoded with MozJPEG at one consistent quality. Every result reports exact bytes so you can compare formats and keep the smallest useful output.

PNG is where a lossless-only optimiser can run out of road. Photo PNGs can be re-encoded to a colour palette before OxiPNG optimisation, while screenshots, logos and line art that already fit a palette do not pay for colours they never use. Animated PNG files keep their animation, and WebP goes through libwebp instead of a generic canvas export.

MozJPEG, libwebp, OxiPNG, libavif and libjxl are open-source WebAssembly codec families also used by tools such as Squoosh. VidSmaller adds the batch workflow: multiple files, several formats side by side, HEIC input and one ZIP download.

See what compression changes before using the result

A byte count cannot tell you whether a photo still looks right. Use the comparison above to drag between the original and compressed image, then switch to 1:1 to inspect the sailboat, reflection and fine sky detail at native resolution.

For your own files, turn on automatic conversion and compare the byte count for WebP, JPG, PNG, AVIF or JPEG XL. Each selected format is generated side by side, so the trade-off is visible instead of guessed.

100% browser-side — your images never leave your device

Many online compressors upload your photo to a server. VidSmaller's image pipeline runs on your machine with WebAssembly, so image bytes are not sent to VidSmaller. After the local codecs are ready, prepared formats continue working without an upload step.

That makes local compression suitable for ID scans, medical images, contracts and anything else you would rather not hand to a third party.

Batch compress and download as a ZIP

Add up to 20 images at once on the Free plan, up to 5 MB each, with no daily image quota. Every file is processed independently, and you can download them one by one or grab the whole batch as a ZIP.

Pro raises the browser-safe batch to 500 images and 150 MB per image, adds folder upload and unlocks the complete batch studio. Image processing still does not spend video credits.