Compress JPG to 100KB

1. Upload your JPG (up to 50 MB).
2. The compressor automatically targets 100 KB or under.
3. Download the compressed JPG — ready to upload or send.

100 KB is the most common target for web uploads and email attachments — large enough for high-quality images, small enough to meet most platform caps. The compressor iterates quality until the output is 100 KB or under.

100 KB is the most common upload cap across the web — WordPress, Shopify, email clients, and countless forms. At 100 KB, a JPG still looks sharp on screens (typically 800-1200px wide at quality 75-85%). Instead of manually tuning quality, our tool iterates until the output is exactly 100 KB or under — one upload, done.

The compressor decodes the JPG and re-encodes it with libjpeg-turbo starting at quality 85%. If the output exceeds 100 KB, it reduces quality and re-encodes until the file is 100 KB or smaller. At 100 KB, a JPG is typically 800-1200px wide with quality 75-85% — visually indistinguishable from the original on most screens.

• Website image upload (100 KB cap).
• Email attachment (fast sending).
• Marketplace product image upload.
• Blog post hero image optimization.
• Social media image with size cap.
• WordPress media library upload.
• Any platform with a 100 KB limit.

100 KB is a good balance — the photo looks sharp on screens at normal viewing sizes. Expect 800-1200px wide with quality 75-85%. Fine for web, email, and marketplaces; acceptable for small prints at 300 DPI.

• 100 KB limits resolution — typically 800-1200px wide.
• Very detailed photos may show slight softening at 100% zoom.
• Not ideal for large-format print.
• Transparency is not supported (JPG limitation).
• For higher quality, use the 200 KB or 500 KB variant.

• Output opens in every browser, viewer, and application.
• Accepted by WordPress, Shopify, Squarespace, Wix, Ghost.
• Accepted by Gmail, Outlook, Yahoo (email attachment).
• Accepted by Amazon, eBay, Etsy, and most marketplaces.
• Standard JPG — no special software needed.

• 100 KB is the sweet spot for web and email.
• Resize to the target display size before uploading for best results.
• If quality is too low, use the 200 KB variant.
• Metadata is stripped automatically for maximum savings.
• For higher quality, consider WebP (smaller and sharper at the same size).

Need to hit an exact size? Use our dedicated target-size tools:

Output is still slightly over 100 KB

Crop or resize the image smaller first, or use the 200 KB variant.

Photo looks soft at 100 KB

Resize to the actual display size before uploading. A 4000px image forced into 100 KB loses more quality than a 1200px image.

Platform rejects the file even though it's under 100 KB

Check other requirements — dimensions, format, color profile. Crop and convert as needed.

• WordPress — Media Upload Limits
• ITU-T T.81 — JPEG specification