Compress Image to 100KB
Need an image at exactly 100KB? Drop it in — we'll iteratively adjust quality client-side until the file lands just under 100KB while keeping the best look possible.
Files never leave your device
Drag & drop images here
or click to browse · paste with ⌘V
Tip: copy an image and paste anywhere on the page
Scale by percent
Scaling down image dimensions usually creates the biggest file size reduction.
Compression preset
Quick start — tweak below if you like
Lower quality creates a smaller file but may slightly reduce image clarity.
Auto-tunes quality. JPG/WEBP/AVIF only.
Add images to begin
When to use this tool
- An online form (visa application, exam registration, banking KYC) requires photos under 100 KB.
- You're uploading a profile picture and the platform enforces a tight cap.
- You're attaching many photos to a single email and need each small.
Best for
- Government and exam application portals
- KYC / banking uploads
- Profile pictures with strict limits
- Multi-photo emails
Quality & file size notes
- • We auto-tune quality and dimensions to land as close to 100 KB as possible without going over.
- • If 100 KB isn't reachable at the current dimensions, the tool reduces resolution before sacrificing more quality.
Things to watch out for
- — Forcing every image to 100 KB will visibly soften large or highly-detailed photos. For ID-style portraits this is usually fine.
- — Some forms specify both maximum file size AND minimum dimensions — check the requirements before submitting.
Not sure which format to choose?
Compare JPG, PNG, WEBP, AVIF, HEIC, GIF, SVG, BMP, TIFF and PDF side-by-side with use cases and trade-offs.
Read the image format guide →More questions about this tool
Why do forms require 100 KB photos?+
Government and exam systems often process millions of submissions; capping each photo at 100 KB keeps their servers and databases manageable.
Can a 5 MB photo really shrink to 100 KB without looking bad?+
For most ID and form photos, yes — the displayed size is small and viewers don't zoom in. Combine a moderate JPG quality drop with a smaller width (around 1024 px) and you'll hit the target comfortably.
Should I use JPG or PNG for a 100 KB limit?+
Almost always JPG. PNG cannot reach 100 KB for a normal photo without severe colour reduction.
Why use this compressor?
- Runs 100% in your browser — files never leave your device
- Free and unlimited — no account, no watermarks
- Bulk compress dozens of images in parallel
How it works
- 1Drop your images into the box above
- 2We'll target around 100 KB — adjust if you like
- 3Click Compress and download the smaller files
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Frequently asked questions
Are my images uploaded anywhere?
No. All compression happens locally in your browser using the Canvas API. Your files never leave your device.
Is the compressor free?
Yes — fully free, unlimited, no account, no watermarks.
Will my image lose quality?
JPG, WEBP and AVIF use lossy compression, so some quality is traded for smaller files. Use the quality slider to find the sweet spot. PNG is lossless — most savings come from re-encoding and stripping metadata.
How small can I make my images?
Pick a target file size (in KB) and we'll auto-tune quality to get as close as possible while preserving the best look.
Is EXIF metadata removed?
Yes — re-encoding strips EXIF, GPS coordinates and camera tags, which also reduces file size.
Does it work on mobile?
Yes. The compressor is fully responsive and runs on any modern phone, tablet or desktop browser.