Tool
Name a size in kilobytes and we hit it, or drive the quality slider yourself. Output JPEG, WebP, or the original format, all in your browser.
Popular targets: 50 KB, 100 KB, for email, or all compression guides.
Target size aims for an exact kilobyte limit, the kind exam portals, ID forms, and job applications enforce. Quality mode gives you the slider instead.
JPEG & WebP use lossy quality. For PNG (Keep original), the slider scales resolution because browsers ignore PNG quality.
We try the highest quality that still fits, then reduce dimensions only if the limit demands it.
WebP is usually smaller than JPEG/PNG at the same visual quality, great for websites. JPEG is the safest choice for portals and older email clients. PNG keeps sharp edges and transparency when you need a .png download.
Processed entirely in your browser, your images are never uploaded anywhere.
Many mail clients choke on multi‑megabyte photos. Switch to target size, set 200 KB, and every photo in the batch comes back under the limit. Keep JPEG for maximum compatibility, or WebP if you know the recipient’s client handles it.
Pick “To a target size”, type the number, and the tool searches for the highest quality that still fits, dropping resolution only if the limit forces it. That is how exam portals, ID uploads, and government forms usually phrase their cap.
Web pages load faster with leaner assets. Prefer WebP for the web, keep quality around 70–85 in quality mode, and batch-compress a whole gallery in one go, then download everything as a zip.
Compress JPEG, PNG, or WebP images in your browser, nothing is uploaded to a server.
Phone photos are often several megabytes: fine for a camera roll, painful for email attachments, government portals, and job boards that cap uploads at 100 KB or 50 KB. Tokitool’s Image Compressor shrinks JPEG, PNG, and WebP in your browser: name a target size, compare before/after previews, and download one file or a whole ZIP. Nothing is uploaded to Tokitool for compression.
Target size mode does the fiddling for you. Instead of nudging a slider and re-checking the file size, you type the cap your form demands and the tool searches for the highest quality that fits underneath it. It only reduces pixel dimensions when quality alone cannot get there, so a 4 MB phone photo lands on 50 KB while staying as sharp as that budget allows. Because browsers cannot encode lossy PNG, target mode outputs JPEG by default, or WebP if you select it.
For a strict kilobyte target, start with the matching guide: compress to 50 KB, to 100 KB, to 500 KB, to 1 MB, or for email. Need a 20 KB signature cap or a 200 KB email file? Type that number in target-size mode — same tool, no extra landing required. Format-specific tips live under compress PNG, compress JPEG, compress WebP, PNG to JPG, JPG to PNG, WebP to JPG, and WebP to PNG.
After a passport crop, compress second. Size the photo first with the Passport Photo Resizer, then return here if the portal also enforces a file-size limit.
Yes. Files are read and recompressed in your browser. They are not uploaded to Tokitool to unlock the download.
JPEG is safest for photo portals. WebP is often smaller at the same look. Keep PNG for graphics with transparency, or convert photos away from PNG when you need a tiny file.
Yes. Add a batch, set quality, and use Download all for a ZIP of the results.
Lower quality further and reduce pixel dimensions. Very large originals rarely hit 50 KB on quality alone, see the Compress to 50 KB guide.