utilizeHow this image compressor works
Your image is loaded into your browser and re-encoded using the quality and format you choose. Lowering the quality slider reduces file size by allowing more compression. The before and after file sizes are shown side by side so you can see the exact reduction before downloading.
When would you use this?
- Email attachments — Most email providers cap attachments at 10-25MB. Compressing photos before attaching avoids bounce-backs and speeds up delivery.
- Website images — Large images are one of the most common causes of slow-loading websites. Compressing to WebP or JPEG at 75-85% quality cuts load times without visible quality loss.
- Uploading to cloud storage — Compressed images take less storage quota and upload faster on slower connections.
- Social media — Platforms like Instagram and Twitter re-compress images on upload, so starting with a well-compressed file often produces better final quality.
- WhatsApp and Telegram — These apps compress images automatically. Pre-compressing gives you more control over the final quality.
How to choose the right settings
- For photos: JPEG or WebP at 70–85% quality is a good starting point. The before/after panel lets you compare visually before downloading.
- For screenshots, logos, or images with text: PNG is lossless and stays sharp. The quality slider does not affect PNG output.
- For web use: WebP produces the smallest files for photos and supports transparency.
- Target file sizes: For email, aim under 1MB. For web, under 200KB is ideal. For WhatsApp, under 500KB avoids further app compression.
How does this compare to other tools?
TinyPNG uses server-side processing and limits free users to 20 images per month. Squoosh (Google) is also browser-based and excellent — this tool offers a simpler interface focused on quick single-image compression with a live before/after size comparison. This tool has no limits and requires no account.
Will compressing reduce image dimensions?
No — this tool keeps the original width and height and only changes how the pixel data is encoded. If you also need to resize, do that first in an image editor, then compress here.
How much compression is too much?
Watch the preview for visible artifacts — blocky areas around edges and text, color banding in gradients. A quality setting of 70–80% is usually the sweet spot where compression is strong but artifacts are not visible.
Do you store or see my image?
No. The image is processed entirely in your browser using the HTML canvas API and is never uploaded anywhere.
Can I compress multiple images at once?
This tool processes one image at a time with a live preview. For batch compression, use the Image Converter tool which processes multiple files simultaneously.