Why compress images
Large photos cause problems everywhere: job portals and government forms reject files over 100 KB, 200 KB or 1 MB, email bounces attachments over 20–25 MB, and websites with heavy images load slowly and rank worse in Google. A phone photo is often 3–8 MB, far more than needed for screens. This compress image tool shrinks images while keeping them looking good.
Two compression modes
Target file size – type the size you need and choose KB or MB (the default is 100 KB). The tool tries progressively lower quality settings to find the best-looking result under your limit, and reduces the dimensions only if quality alone cannot reach it. This is the mode to use for forms and portals with strict size limits.
Quality level – set the Quality slider yourself. Higher values keep more detail; lower values give smaller files. Use this when you care about consistent quality across a batch rather than an exact size.
Format
- Same as original (PNG → JPG) – JPGs stay JPG; PNGs become JPG, because PNG cannot be compressed with a quality setting. Transparent areas become white.
- JPG – universally accepted; best for photos.
- WebP (smaller) – typically 25–35% smaller than JPG at the same visual quality, and supports transparency. Shown only when your browser can encode WebP. Use it for websites; check that the destination accepts WebP before using it for forms.
HEIC photos from iPhones are accepted and converted during compression.
Max width
Max width (px, 0 = keep) scales down wide images before compressing. Reducing dimensions is the most effective way to cut file size: a 4,000-pixel-wide photo resized to 1,600 pixels is about a sixth of the pixels. Good values:
| Use | Max width |
|---|---|
| Website hero image | 1,920 px |
| Blog or product image | 1,200–1,600 px |
| Email attachment | 1,600 px |
| Forms with 100 KB limits | 800–1,000 px |
Getting the best results
- Start from the original, not an already compressed copy – each round of JPG compression loses a little more detail.
- For strict limits like 20 KB or 50 KB (common for signatures and passport photos on application forms), also set a Max width around 400–600 px so the tool does not have to drop quality too far.
- Check text and faces after compressing. Fine text shows artefacts first.
- For exact pixel sizes, use Resize Image first, then compress.
Batch compression
Select several images and they are all compressed with the same settings. The results list shows each file’s original and new size; download them individually or as a single ZIP.
Privacy and metadata
Images are processed on your device and never uploaded. Because they are re-encoded, the output does not include the original EXIF metadata such as GPS location and camera serial numbers. If you only want to remove metadata without changing quality, use EXIF Remover instead.
Related tools
Image Converter changes formats without compression goals, Crop Image removes unwanted edges, and Compress PDF shrinks scanned documents.
Frequently asked questions
How do I compress an image to 100 KB?
Choose Target file size, enter 100 and select KB, then press Compress. The tool searches for the highest quality that fits under 100 KB, reducing dimensions only if it has to.
How do I reduce a photo to under 1 MB or 2 MB?
Enter 1 or 2 and choose MB in the target size unit. Most phone photos fit under 1 MB with no visible difference.
Why do my PNGs become JPG?
PNG is lossless and cannot be compressed much by quality. Converting to JPG (or WebP) makes photos much smaller. If you need transparency, choose WebP, which keeps it.
Will compression remove EXIF data and location?
Yes. Re-encoded images do not carry the original EXIF metadata, so GPS location and camera details are removed as a side effect.
Can I compress many images at once?
Yes. Select several images; they are compressed with the same settings and you can download them together as a ZIP.
Are my images uploaded?
No. Compression happens in your browser on your device.