Shrink Images to a Precise Target File Size

Single image compression

ImageToolkit image compression icon

Drop an image here or browse

PNG · JPG · WEBP · BMP · GIF · TIFF · max 15 MB

FAQ

ImageToolkit's image compressor shrinks photos and graphics to a file size you choose — not just “smaller,” but an exact KB target for forms, email gateways, app stores, and upload limits.

Yes. Upload a single file, queue up to 20 files for bulk ZIP compression, or paste up to 20 public image URLs when the files are already online.

Pick a preset (50–500 KB) or enter an exact KB target so the output matches email, form, marketplace, or app-upload limits without guesswork.

ImageToolkit compresses on the backend and returns a JPEG (or a ZIP for bulk). Optional crop, rotate, and resize prep can run in the browser first.

No. Compression runs on ImageToolkit's servers toward your KB target and returns a downloadable file, with no permanent gallery of your uploads. URL picks may use a short-lived session only.

How Compress Works

ImageToolkit's image compressor shrinks photos and graphics to a file size you choose — not just “smaller,” but an exact KB target for forms, email gateways, app stores, and upload limits. Upload a single file, run bulk ZIP compression (up to 20 files), or paste public image URLs. Compression runs on ImageToolkit's servers toward your KB target and returns a downloadable JPEG, with no permanent gallery of your uploads.

Step 1: Upload or paste a URL

Drop a single image, queue up to 20 files for bulk ZIP compression, or paste up to 20 public image URLs when the files are already online.

Step 2: Set your target size

Pick a preset (50–500 KB) or enter an exact KB target so the output matches email, form, marketplace, or app-upload limits without guesswork.

Step 3: We compress on the server

ImageToolkit compresses on the backend and returns a JPEG (or a ZIP for bulk). Optional crop, rotate, and resize prep can run in the browser first. URL picks may use a short-lived session — nothing is kept as a permanent gallery.

Step 4: Preview and download

Compare before and after sizes, then download the compressed JPEG or bulk ZIP. Recent single results can appear in local history in your browser for quick re-downloads.

Why use this tool?

Exact target size in KB — not vague “optimize”
Single, bulk ZIP, and public URL modes
Ideal for forms, email, and app upload caps
No account required
No permanent gallery storage
Free to use with browser UI + server compression