BriskFile

Compress JPG images

Drop your JPEG files below and choose how small you need them. Everything happens on your device.

A JPEG is already compressed, so making one smaller means lowering its quality — and quality 75 to 82 is the range where the file roughly halves and almost nobody can see the difference.

Nothing is uploaded. Your files are read by this page and processed by your own processor. Open the Network tab and watch — you will not see them leave.

What compressing JPG actually does

Most JPEGs are considerably larger than they need to be. A photo straight out of a phone or camera is saved at a quality setting chosen to be safe rather than efficient, and re-encoding it at a sensible quality routinely removes 60–80% of the file with no visible change at all.

BriskFile uses mozjpeg, the encoder Mozilla built specifically to squeeze more out of the JPEG format than the standard library does. It is the same encoder behind most "smart" compression services — the difference is that here it runs on your machine instead of theirs, so there is no upload, no queue and no daily limit.

Getting a good result

  • Quality 82 is where most photographs stop looking different from the original. Going to 95 typically doubles the file for a difference you cannot see without pixel-peeping.
  • If a form is rejecting your file, use the size target rather than guessing at quality. BriskFile searches for the highest quality that fits under your limit and always lands under it.
  • Resizing is usually more effective than compressing. A 4000px photo displayed at 800px wide is carrying 25 times more pixels than anyone will ever see.
  • Compressing an already-compressed JPEG stacks artefacts. If you have the original, start from that.

Hitting an exact file size

Upload forms, government portals and job applications frequently demand a file "under 200KB" and reject anything over it, without telling you by how much. Tick Aim for a specific file size and BriskFile searches for the highest quality that still fits, re-encoding up to eight times to find it.

The result is always under your limit, not near it. A file three kilobytes over the cap is rejected exactly as firmly as one three megabytes over.

Questions

How much smaller will my JPEG get?

For a photo straight from a camera or phone, typically 60–80% smaller with no visible difference. For a JPEG that has already been compressed once, the saving is much smaller and the quality cost is higher.

Will I lose quality?

Some, technically — JPEG is lossy and re-encoding always discards a little. At quality 82 it is not visible at normal viewing sizes. Use the before/after slider to check on your own image rather than taking anyone’s word for it.

Is there a limit on file size or how many I can do?

No. There is no daily cap, no file counter and no upgrade prompt. The only real limit is your device’s memory, since everything is processed locally.

What BriskFile will not do to you

  • Your files never leave your device

    Every conversion runs in your browser. Open DevTools, watch the Network tab, and you will see no upload — because there is not one.

  • No account, no email, no watermark

    Nothing to sign up for and nothing stamped on your images. There is no step between choosing a file and getting it back.

  • No limits at the download button

    No daily cap, no file counter, no "upgrade to download". If the tool starts a job, it finishes it.

  • Checkable, not just claimed

    Open the Network tab and convert something — nothing goes out. Or load the page, disconnect, and watch it keep working: the tool is already on your machine, and your file never leaves it.