Reduce Image Size Online Free

How to reduce image file size

Drop your image above and use the quality slider to reduce file size. At 80% quality, most JPEG photos shrink by 40–60% with no visible difference. The before/after file size is shown so you can see the exact reduction. Nothing is uploaded — everything runs in your browser.

Frequently asked questions

How much can I reduce image file size?

JPEG images can typically be reduced 40–80% with barely visible quality loss. A 5 MB photo can often be brought down to 500 KB–1 MB at 80% quality — small enough for email or web use. PNG files convert to JPEG internally for maximum size reduction.

How do I reduce image size to under 100 KB?

First resize the image to smaller dimensions using the image resizer — reducing a 4000px photo to 1200px cuts file size ~90% before any quality compression. Then use this tool at 80% quality to fine-tune. Most photos will reach under 100 KB with these two steps.

How do I reduce image size for email?

Resize to max 1200px width, then compress to 80–85% quality. This typically results in a 200–500 KB file that loads fast in any email client. Most email services have a 10–25 MB attachment limit, but smaller files send faster.

How do I reduce image size without losing quality?

Use 85–90% JPEG quality — the difference from 100% is invisible to the human eye but file size drops 30–50%. Going below 70% starts to introduce visible artifacts, especially around text and sharp edges.

How do I reduce photo size on iPhone?

Open toolchop.com/reduce-image-size in Safari on your iPhone. Tap the upload area and select photos from your Camera Roll. Adjust quality, then tap Download — the compressed photo saves to your device. No app needed.

Does reducing image size change the dimensions?

No — compression reduces file size while keeping the same pixel dimensions. To reduce dimensions (width × height), use the image resizer instead. Combining both gives the smallest possible file size.

What formats can I compress?

JPEG, PNG, WebP, and GIF (first frame). All formats output as JPEG for maximum compression. If you need PNG output, use our PNG maker after compressing.

How do I reduce image size to 100 KB?

Resize the image to under 1200px wide first using the image resizer — that step alone often drops a 5 MB photo to under 500 KB. Then compress at 80–85% quality here. For most photos, this combination comfortably gets you under 100 KB. If you still need to go lower, try 1000px width at 75% quality.

How do I reduce image size to 200 KB?

Drop your image here and set the quality slider to 85%. A typical 3–6 MB smartphone photo usually compresses to 200–400 KB at that setting. If it's still over 200 KB, nudge the slider to 75% or resize to 1600px first. The before/after sizes update in real time so you can find the right balance without guessing.

How do I reduce image size for WhatsApp?

Compress to under 500 KB before sending — WhatsApp automatically recompresses photos you send via the photo picker, but files you share as documents are sent as-is. Resize to 1600px and compress at 85% for sharp images that WhatsApp won't need to downgrade further. This also makes sending faster on slow connections.

How do I reduce image size for email?

Aim for 200–500 KB per image. Resize to 1200px wide and compress at 85% here — that produces a clear, professional image under 500 KB. For a logo or product shot where sharpness matters more than file size, use 90% quality. Keep total email attachments under 10 MB to ensure delivery to all providers.