Convert images in your browser
Drop any JPG, PNG, WebP or SVG and pick the output format — Tinier converts it locally on your device. Choose a target for the whole batch or per image, and switch formats on the spot without re-uploading. Nothing leaves your device; it works offline after the page loads. Up to 20 files at a time, 50 MB each.
What can Tinier convert?
Tinier converts between the four formats that cover almost every everyday need: JPG, PNG, WebP and SVG. Raster formats (JPG, PNG, WebP) interconvert freely; SVG (a vector) is rasterized to any of the three. Pick the output format globally for everything you drop, or change it per image — the result re-renders instantly, no re-upload.
Which format should I convert to?
WebP is usually the best pick for the web: it’s the smallest and keeps transparency. PNG is lossless and universally editable — good for graphics and archiving. JPG is the most compatible for photos, but has no transparency (transparent areas become white). SVG stays crisp at any size but only works where vectors are supported; convert it to a raster format when a tool won’t accept it.
Why convert in your browser instead of a server?
Every conversion runs on your device with WebAssembly (and a canvas for SVG), so your files are never uploaded. It is faster than a server tool on files under 10 MB because there is no round-trip, and it is private by construction — you can disconnect your internet after the page loads and it still works. No account, no rate limit, no size paywall.
Frequently asked questions about converting images
Are my images uploaded to a server?
No. Every conversion runs entirely in your browser. Your files never leave your device — you can turn off your internet after the page loads and it still works.
Which formats can I convert between?
JPG, PNG, WebP and SVG. The three raster formats interconvert freely; SVG is rasterized to JPG, PNG or WebP. You can pick a different output format for each image.
Can I convert a whole batch at once?
Yes. Drop up to 20 files, set a global output format for new files, and adjust any individual image. Download them one by one or all together as a ZIP.
Does converting change the image quality?
For lossy targets (JPG, WebP) you control quality with the per-image slider. PNG is lossless. Converting a lossy image (like a JPG) to PNG makes a lossless copy but cannot restore detail the JPG already lost.
Convert specific formats
- PNG to WebP — shrink PNGs for the web, transparency kept.
- JPG to WebP — smaller photos for faster pages.
- SVG to PNG — rasterize a vector to a pixel image.
- Compress images — already the right format? just make it smaller.