BulkMedia

Compress Images to 100 KB

Job portals, exam forms and email attachments often refuse anything over 100 KB. Set your limit once, drop in a whole folder of photos, and get every file under the cap automatically.

⬆ Choose photos to compress
🔒 Never uploaded ⚡ Batch conversion 💸 Free, no signup

Upload images

Drop your images here

JPG · PNG · WebP · AVIF · GIF · BMP — folders allowed

or press Ctrl+V to paste a screenshot

0 images

Your images will appear here.

Everything runs locally — nothing is uploaded.

Why do upload forms insist on 100 KB?

Government portals, university admission systems and old HR platforms were built when storage was expensive, so they cap uploads at 100 KB or 200 KB per document. Modern phone cameras produce 3–8 MB photos, which fail instantly. Compressing to a target size is the fastest fix that keeps the document readable.

Use caseTypical limitSuggested setting
Job & exam portals100 KBTarget 100 KB, JPG
Passport / visa photos20–50 KBTarget 50 KB, crop to square first
Email attachments10–25 MB totalTarget 500 KB, max width 1600px
Web upload forms1–2 MBWebP at 80% quality
Tip: if a form rejects your file even at 100 KB, check the required pixel dimensions too. Many portals also demand a minimum width, such as 600px — the resize options above let you satisfy both rules at once.

How to compress an image to 100 KB

  1. Add your photos. Drag them in, or browse to select several at once.
  2. Switch to "Target file size". Enter 100 in the KB field. The tool handles quality and dimensions for you.
  3. Convert and download. Check the "−%" saving on each row, then grab the ZIP.

Image compression — frequently asked questions

How does the tool guarantee a size limit?

It runs a binary search over JPEG quality settings and, if a file still will not fit, gradually reduces its dimensions. The result is the best-looking file that stays under your limit.

Will a 100 KB image still look good?

For screen use, yes. A 1200px-wide photo at 100 KB is perfectly sharp on a normal monitor. Only large prints or heavy cropping would reveal compression artefacts.

Can I compress to 20 KB or 50 KB instead?

Yes. Type any number into the target size field — for example 20 for passport photos or 50 for tight upload limits.

Which formats can I compress?

JPG, PNG, WebP and AVIF files. Photos compress far better than screenshots or logos, which contain sharp flat areas.

Are my photos uploaded?

No. Compression runs entirely inside your browser. Nothing is sent to a server, which is important when the photos are personal documents.

Can I compress many images at once?

Yes — drop a whole folder and each image is compressed to your target size independently.

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