Pixelbench

Nothing uploads · Everything runs locally

Your images never
leave this tab.

Convert, resize, crop, compress, strip metadata and build PDFs — with the same browser you're reading this in. No account, no upload, no queue.

Drop an image here

or · JPG, PNG, WebP, GIF, AVIF, BMP, HEIC, SVG

Free, no sign-up. Works offline once loaded.

The bench

Thirteen tools, each one page, each doing one job properly.

Why it works this way

Most image sites upload your file, process it on a server and hand back a link. This one doesn't.

Privacy

The file stays on your disk

Your browser reads the image into memory, edits the pixels on a canvas and writes the result straight back to your downloads folder. There is no upload step to opt out of — passports, invoices, medical scans and client work never travel.

Speed

No round trip, no queue

A 4 MB photo doesn't need to climb your upload link and wait behind other people's jobs. Conversions finish in the time it takes to decode and re-encode locally, which on most machines is under a second.

Limits

Batch as much as you like

There's no free tier counting your files, no watermark on the output and no daily cap. The only real ceiling is your own device's memory, and you'll feel that long before any rule stops you.

Format support

Decoding and encoding both depend on your browser. Each tool checks what yours can do and hides anything it can't deliver.

Read and write support by image format
FormatOpenSave asNotes
JPEGYesYesLossy. Best for photographs.
PNGYesYesLossless, keeps transparency.
WebPYesYesSmaller than JPEG at matching quality.
AVIFYesSome browsersExcellent compression; encoding support varies.
GIFYesFirst frameAnimation is flattened on save.
BMPYesYesUncompressed, large files.
ICOYesYesMulti-size icons via the favicon tool.
SVGYesNoRasterised on open at your chosen size.
HEIC / HEIFSafari, some othersNoiPhone photos. Convert to JPEG to share.
TIFFSafariNoLimited browser support.
PDFNoYesExport only, via the Images to PDF tool.

Questions

Are my images uploaded anywhere?

No. Everything happens inside the page using the File and Canvas APIs. You can prove it: open your browser's network panel, run a conversion, and watch that no request goes out. Disconnect from the internet and the tools keep working.

Is there a file size limit?

There's no imposed limit, because there's no server to protect. The practical ceiling is your device's memory. Photos up to roughly 50 megapixels are comfortable on a laptop; a very large scan or a long batch may struggle on an older phone.

Why did my file get bigger after converting?

Usually because you converted a lossy format to a lossless one. A JPEG saved as PNG has to store every pixel exactly, including all the compression artefacts, so it commonly triples in size. Going the other way, or to WebP, will shrink it.

Does converting to JPEG lose quality?

Yes, a little, every time. JPEG discards detail to save space, and re-saving an existing JPEG compounds the damage. Keep your original, edit from it, and export a fresh copy rather than repeatedly saving over the same file.

Can I use these tools for commercial or client work?

Yes. The tools are free to use for any purpose and nothing is added to your output — no watermark, no metadata tag, no attribution requirement. The images remain entirely yours.

Do I need to install anything?

No. It's an ordinary website. If you'd like it on your home screen or dock, most browsers will let you install it as an app, after which it runs offline.

Does stripping metadata really remove the location?

The metadata tool re-encodes the image from raw pixels, which drops EXIF, GPS coordinates, camera model and timestamps along with everything else in the header. What survives is only what's visible in the picture itself.