How to compress an image to 100 KB (or any exact size)
Job portals, visa applications, university admissions and government forms love strict upload limits: "photo must be under 100 KB", "signature under 50 KB", "document under 200 KB". Your phone's camera produces 4 MB photos, and most compressors only offer a vague quality slider — so you end up compressing, checking the size, and compressing again.
The fix is a compressor that targets a file size directly.
Compress to an exact size
- Open QuickImage in your browser.
- Switch to Target size mode and type your limit — e.g. 100 KB.
- Drop your photo in. QuickImage searches for the highest quality that still fits under the limit, automatically.
- Download the result and upload it to the form. Done.
QuickImage — compress, resize & convert
Target-size compression, pixel-exact resizing and JPG/PNG/WebP conversion — all on your device, nothing uploaded.
Compress an image now
Getting better results at tiny sizes
- Resize first if the pixels are huge. A 4000 px-wide photo squeezed to 100 KB looks worse than the same photo resized to 1200 px and then compressed. Forms rarely need more than 1000–1500 px.
- Use JPG for photos. PNG is for screenshots and graphics with flat colors; for a photograph it can be 5–10× larger at the same look.
- Crop dead space. Every pixel you crop is budget you get back in quality.
Why local processing matters here
The images people compress for forms are IDs, passport photos and signatures — exactly what you don't want sitting on a random server. QuickImage does all processing in your browser: you can load the page, go offline, and it still compresses.