Image Compressor OnlineAuto · Reduce by % · Target Size
Free image compressor — shrink single or bulk photos instantly, private and on-device, no upload needed. Compress JPG or PNG using Auto, percentage or target size modes. Try Advanced Resizer or see all image tools on ImgTry.
One tap, no settings
Applies a fast, well-balanced compression pass per image — strong size reduction without visible quality loss.
Tool binary-searches the real encoder until the output actually lands at this % smaller — not a guess.
Tool auto-adjusts quality per image to get as close as possible without going over.
A 6000 px photo carries far more detail than any web page shows. Capping the longest side is the single fastest way to cut file size — and it runs before compression, so everything after it gets quicker too.
Image name
Original
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Compressed
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How to Compress an Image Online
- Click Select images or drag your photos into the box.
- Choose Auto, Reduce by % or Target size.
- Press Compress all and check the before and after preview.
- Download single images or all of them together as a ZIP.
Why Use ImgTry Image Compressor
- Bulk image compression: compress multiple JPG, PNG, WebP, and other supported images at once.
- Auto compression: automatically reduce image file size while preserving the best possible image quality.
- Reduce by percentage: choose a specific percentage to reduce your image file size.
- Target file size: compress images toward a specific size, such as 10KB, 50KB, 100KB, or 200KB.
- Private and secure: images are compressed directly in your browser without uploading them to a server.
- Before and after preview: compare image quality and file size before downloading the compressed image.
- Free to use: compress images online without signup or watermarks, with support for bulk image compression.
Who Is This For
- Students and job seekers uploading photos to government or exam forms
- Bloggers and website owners who want faster pages
- Sellers who need small product photos
- Anyone who wants to send photos by email or WhatsApp
Supported Formats
| Input | Output options |
|---|---|
| JPG / JPEG | JPEG, WebP, PNG or keep original |
| PNG | PNG, WebP, JPEG or keep original |
| WebP | WebP, JPEG, PNG or keep original |
| BMP | JPEG, WebP, PNG |
Related Image Tools
- Resize Image - change width and height or percentage
- Advanced Image Resizer - batch resize with presets
- Image Converter - convert JPG, PNG and WebP
- HEIC to JPG - convert iPhone photos
- Image to PDF - combine images into one PDF
- All ImgTry image tools
Image Compressor FAQs
Quick answers about compressing images with ImgTry.
How do I compress an image online?
Click Select images, choose your photos, pick Auto, Reduce by % or Target size, then press Compress all. Download each result or get everything as a ZIP.
Is the image compressor really free?
Yes. It is free to use with no signup and no watermark on your compressed images. You can compress as many photos as you need.
Are my images uploaded to a server?
No. Compression runs inside your browser, so your photos stay on your device. Nothing is sent to ImgTry servers.
Will compressing reduce image quality?
Auto mode balances size and quality so the difference is usually not visible. You can compare the before and after preview for every image before downloading.
Can I compress an image to a specific size like 100KB?
Yes. Choose Target size, enter a value in KB or MB, and the tool adjusts quality for each image to get as close as possible without going over.
Which formats can I compress?
You can compress JPG, PNG, WebP and BMP images, and save the result as JPEG, WebP or PNG. You can also keep the original format.
Can I compress many images at once?
Yes. Add many photos together, apply one setting to all of them, and download the compressed files in a single ZIP.