Compress JPEG to 100KB
Binary-search JPEG quality to fit a 100KB ceiling.
Runs in this tab. The file stays here.
This runs in your browser. Nothing is uploaded.
About Compress JPEG to 100KB
Compress a JPEG to 100KB or under with a quality search in your browser. Nothing is uploaded.
This page accepts JPEG input and aims for 100KB or under. It’s for photos that are already .jpg/.jpeg—another encode from the same family, not a PNG or HEIC conversion pipeline.
A hundred kilobytes is a common email and CMS soft limit: big enough for a usable still after a sensible re-encode, small enough that portals still bother to check.
Encoding, measuring, and (if needed) shrinking all happen in your browser. You’ll get another generation of JPEG artefacts; that’s the trade for a hard byte cap. EXIF and other metadata don’t survive the re-encode. Prefer the original camera file over a twice-compressed social download when you can.
How to use Compress JPEG to 100KB
- 1Drop your JPEG onto the panel, or click to browse.
- 2Leave the target at 100KB; this page doesn’t ask you to type a number.
- 3Click Compress to 100KB and wait while the tab tries several encodes.
- 4Check the printed output size against your portal’s limit, then submit the download.
What it won't do
- Output is lossy JPEG only; transparency is flattened.
- Dimensions may shrink if quality alone can’t reach 100KB.
- Metadata (EXIF, etc.) is stripped by the re-encode.
Common questions
How do I compress this JPEG further until it’s under 100KB?
Use this page: it re-encodes as JPEG and binary-searches quality until the file is at or under 100KB. If that isn’t enough, it shrinks the dimensions and tries again. Guessing a quality slider by hand is the slow version of the same loop.
Does the Compress JPEG to 100KB page upload my file?
No. Decode, encode, and the size checks run in this tab. After the page has loaded, you can go offline and it still works.
Does Compress JPEG to 100KB produce a file of exactly 100KB?
No—at or under. The search keeps the best attempt that still fits. Hitting the ceiling exactly isn’t possible with discrete quality steps, and you wouldn’t want to waste the last few bytes on padding.
What if Compress JPEG to 100KB still finishes over budget?
The page downloads the smallest attempt and says it missed. Crop unused edges, start from a smaller source, or use Resize first. Some limits are too small for the picture you have.
Why does Compress JPEG to 100KB reject PNG or WebP?
So the job matches “compress my JPEG further” without a silent format change. For other formats aimed at the same KB cap, use the matching Compress image to … page instead.
Related tools
- Compress Image to 100KBCompress an image to 100KB or under without uploading it anywhere.
- Compress JPEG to 50KBRe-encode a JPEG until it lands at or under 50KB — nothing leaves this tab.
- Compress to target sizeBinary-search quality until you hit a file-size goal.
- JPG compressorRe-encode JPEG at a chosen quality.
Why this one doesn't upload your file
There is no server to upload to. This page is a static file, and the work happens in your browser using the same graphics and WebAssembly code that renders every other site you visit. Your file is read from disk into memory, processed, and handed back as a download. Once the page has loaded you can disconnect from the network entirely and it keeps working. The longer explanation