ReduceSize

Image tool

Reduce image size

Trim photos and screenshots for forms, email, and profile uploads. Balance quality, pixel size, or a hard KB limit—then compare the result before you download.

Free · no account JPG · PNG · WebP Batch + ZIP

Drop your images here

Click anywhere or drop files, tweak options, then press Reduce

How it works

  1. 01

    Drop your images

    JPG, PNG, or WebP. A thumbnail appears so you know you grabbed the right shot—handy when folders are full of near-duplicates.

  2. 02

    Pick a lever in Options

    Lower quality for casual sharing, cap max edge for forms, or turn on a KB target when the instructions print an exact number.

  3. 03

    Compare, then download

    Glance at the new size, open Compare if faces matter, then download one file or a ZIP of the whole batch.

Why camera files refuse to upload

A phone selfie is often several megabytes because the camera prioritizes detail for editing and prints. Portals and inboxes still speak in kilobytes. The mismatch is ordinary: the site rejects the file, or email stalls, even though the photo “looks fine” on your screen.

This reducer gives you three independent controls—quality, max edge, and optional target size—so you can match the rule in front of you instead of guessing in a gallery app’s export menu.

How the Options panel maps to real tasks

Quality

Best when you only need “good enough on a screen.” Start near 70–80% for everyday photos. Drop further only after you’ve already capped dimensions; otherwise you spend quality on pixels nobody will see.

Max width / height

Form photos rarely need a 4000px edge. Cap at 1920px for general use, 1280px for portals, or 800px when the limit is brutal. Resizing is usually the biggest single win for phone camera files.

Aim for a max file size

Turn this on when the instructions literally say “under 50 KB” or similar. The tool will chase that ceiling. Extreme targets may soften fine detail— that’s why Compare exists.

Already know the number? Open a preset: 20 KB for harsh ID rules, 50 KB for many school forms, or 100 KB for job and email use.

Common mistakes that waste kilobytes

  • Compressing a wide landscape when the form wants a headshot—crop first.
  • Uploading a screenshot of a photo instead of the original image file.
  • Leaving max dimensions on “keep original” while chasing a tiny KB target.
  • Changing Options after a run and downloading without pressing Re-run.

PNG, JPG, and what you’ll get back

PNG keeps sharp edges (logos, UI captures) but it’s lossless: re-saving the same width and height almost never shrinks the file. To get smaller, set a max edge, or turn on a KB target so we can save as JPG. Photographic PNGs chasing tiny form limits usually become JPG—that’s intentional. Prefer a dedicated page? JPG size reducer and PNG size reducer keep the picker focused.

Batching application photos

Drop every portrait you need for one application, set Options once, press Reduce, then download a ZIP. Open any soft-looking result in Compare, tweak max edge, and Re-run only that file.

Documents or animated loops?

Multi-page scans and signed packets belong on the PDF size reducer. Chat stickers and memes belong on the GIF size reducer.

Common questions

Which image formats work?

JPG, JPEG, PNG, and WebP. Each file shows its pixel size in the list. After Reduce, successful files open a before/after compare slider automatically.

Why won’t my PNG get smaller?

PNG is lossless. If you keep the original width and height and don’t set a KB target, the browser just re-encodes the same pixels—size usually stays the same or grows. Set a max edge to resize, or turn on a KB target (we’ll save as JPG) when a form needs a tiny file.

Will my photo look blurry after compressing?

Mild compression is usually hard to notice on forms and chat previews. Very small targets (like 20 KB) need stronger settings, so expect softer detail on large phone photos. Use the compare slider to judge before you download.

Can I type my own max width / height?

Yes. In Options, use the custom max-edge field (any pixel value) or tap a preset like 1920 / 1280 / 800. Choose Original to keep dimensions.

Should I shrink dimensions or lower quality first?

For phone photos, cap the longest side first (1280px or 800px). Resizing often cuts more weight than quality alone. Then lower quality or set a KB target if you still need to go smaller.

Can I compress several images at once?

Yes. Add multiple files, reduce them together, then download individually or as a ZIP. Retry any failed item without redoing the whole batch.