Same format in, same format out
Compression never changes your file type — a JPG upload produces a JPG, a PNG produces a PNG, so nothing you use downstream breaks.
Compress Image
Compress image files online while keeping JPG, PNG or WebP output. Choose quality, compare file sizes, and download privately. Free to start, no signup.
- Same format in, same format out
- Compress in seconds
- Encrypted upload, automatic cleanup
- Free to start
Choose your file
Drop files here or click to upload
JPG, JPEG, PNG, WEBP· up to 20.0 MB per file
Files are private and deleted after conversion
Anonymous files: 20 MB. Free accounts: 50 MB and batches of 5. Paid accounts: 200 MB and batches of 100.
Why use this Compress Image?
Compress image files online while keeping JPG, PNG or WebP output. Choose quality, compare file sizes, and download privately. Free to start, no signup.
Compress in seconds
Re-encoding runs on our servers and typically finishes in a few seconds for photo-sized files, even before batch processing for paid accounts.
Encrypted upload, automatic cleanup
Every upload travels over HTTPS. Source files and compressed outputs are deleted within 24 hours — nothing lingers on our servers.
Free to start
Anonymous visitors get 1 free server-side compression, and free accounts receive 3 conversions every 30 days — no subscription needed for occasional use.
How to use the Compress Image
- 01
Upload your image
Add a JPG, PNG or WebP file. The tool automatically detects its format and keeps that same format for the compressed output.
- 02
Choose a quality level
Pick a value from 1–100 (default 80). For PNG files, setting a quality switches to palette quantization for a much smaller file instead of a purely lossless pass.
- 03
The server re-encodes your file
Your image is re-encoded at the chosen quality on our server, keeping the original format — JPG stays JPG, PNG stays PNG, WebP stays WebP.
- 04
Download the compressed file
Grab your smaller file as soon as it is ready. Paid accounts can compress up to 100 files in one batch and download every result in a single ZIP.
Best source settings for the Compress Image
Choose settings that match the result you need.
↔ Swipe sideways to view every column.
| Need | Recommended setting | Best for |
|---|---|---|
| Quality (1–100, default 80) | Controls how strongly the image is compressed while keeping its original format (JPG, PNG or WebP). The default of 80 looks virtually identical to the original for most photos; values around 60–70 give much smaller files with only minor loss. For PNG files, setting a quality switches to palette quantization, which shrinks the file sharply but can reduce the number of colors. | Controls how strongly the image is compressed while keeping its original format (JPG, PNG or WebP). The default of 80 looks virtually identical to the original for most photos; values around 60–70 give much smaller files with only minor loss. For PNG files, setting a quality switches to palette quantization, which shrinks the file sharply but can reduce the number of colors. |
- Upload your image
- Add a JPG, PNG or WebP file. The tool automatically detects its format and keeps that same format for the compressed output.
- Choose a quality level
- Pick a value from 1–100 (default 80). For PNG files, setting a quality switches to palette quantization for a much smaller file instead of a purely lossless pass.
Compress Image input and output
Review what the tool accepts, how it processes the file, and what it produces.
↔ Swipe sideways to view every column.
| Feature | JPG | PNG |
|---|---|---|
| Format | JPG | PNG |
| Processing | Secure cloud processing | Secure cloud processing |
| Result | Compress image files online while keeping JPG, PNG or WebP output. Choose quality, compare file sizes, and download privately. Free to start, no signup. | Compress image files online while keeping JPG, PNG or WebP output. Choose quality, compare file sizes, and download privately. Free to start, no signup. |
Where to use files from the Compress Image
The output is ready for common workflows supported by its format.
- Same format in, same format out
- Compression never changes your file type — a JPG upload produces a JPG, a PNG produces a PNG, so nothing you use downstream breaks.
- Compress in seconds
- Re-encoding runs on our servers and typically finishes in a few seconds for photo-sized files, even before batch processing for paid accounts.
- Encrypted upload, automatic cleanup
- Every upload travels over HTTPS. Source files and compressed outputs are deleted within 24 hours — nothing lingers on our servers.
- Free to start
- Anonymous visitors get 1 free server-side compression, and free accounts receive 3 conversions every 30 days — no subscription needed for occasional use.
About the formats
JPG
JPG (also written JPEG) is the most widely used lossy image format for photographs, standardized by the Joint Photographic Experts Group in 1992. Practically every camera, phone, and image application can create and open it.
Its strengths are small file sizes for photos and universal compatibility across devices, browsers, and software. The trade-offs: lossy compression introduces artifacts, there is no transparency support, and quality degrades a little more with every re-save. Use JPG for photographs; choose PNG for screenshots, logos, or anything that needs sharp edges or transparency.
PNG
PNG is a lossless raster image format created in the mid-1990s as a patent-free replacement for GIF. It is the standard choice for screenshots, logos, UI graphics, and any image that needs transparency.
PNG preserves every pixel exactly and supports a full 8-bit alpha channel, so text and sharp edges stay crisp. The downside is size: photographs saved as PNG are far larger than the same image as JPG or WebP. Support is universal in browsers and editors, making it a safe default for graphics — just avoid it for large photo collections.
WebP
WebP is a modern image format developed by Google that supports both lossy and lossless compression, along with transparency and animation. At comparable visual quality it usually produces noticeably smaller files than JPG or PNG.
Every current browser supports WebP, which makes it an excellent default for web delivery. Outside the browser the picture is mixed: older desktop software, some email clients, and legacy systems may fail to open it. If a recipient cannot view a WebP file, convert it to JPG for photos or to PNG when transparency must be preserved.
Privacy and file handling
This tool uses secure cloud processing for formats or operations browsers cannot handle reliably.
- Secure transfer
- Files are transferred over HTTPS and used only for the requested operation.
- Automatic deletion
- Inputs are removed within 6–24 hours and generated outputs within 24 hours.
- Private downloads
- Results are delivered with expiring signed download links.
Compress Image troubleshooting
- The compressed file is barely smaller than the original
- Images that were already optimized — especially JPGs saved at low quality or graphics-style PNGs — leave little room to shrink further. Try a lower quality such as 70, or use the Reduce Image Size tool if you need to hit an exact file size.
- My PNG shows slightly different colors after compressing
- That is the palette-quantization trade-off: when a quality is set, the PNG is rebuilt with a reduced color palette to save space. Raise the quality to keep more colors, or convert images with smooth gradients to WebP using the Image Converter instead.
- A large file fails to upload
- Uploads are limited to 20 MB for anonymous visitors, 50 MB for free accounts and 200 MB for paid accounts, so sign in or upgrade for bigger files. Everything is transferred over HTTPS; inputs and outputs are deleted within 24 hours. Paid accounts can also compress batches of up to 100 files and download the results as a single ZIP.
FAQ
- Does compressing change the format?
- No. We keep the original format (JPG, PNG or WebP) and re-encode it at a smaller size. Use the image converter if you also want to change format.
- Is the conversion private?
- Yes. Your files are processed securely and deleted after conversion. We never share your photos.
- Is there a file size limit?
- Free accounts can upload files up to 50 MB. Paid users can upload up to 200 MB.
- What does the quality setting do for each format?
- It controls compression strength while keeping the original format. For JPG and WebP it's a straightforward re-encode; for PNG, setting a quality switches to palette quantization, which shrinks the file sharply but can reduce the number of colors.
- Why is the compressed file barely smaller than the original?
- Images that were already optimized — especially low-quality JPGs or graphics-style PNGs — leave little room to shrink further. Try a lower quality, or use the Reduce Image Size tool if you need an exact target size.
- Can I compress a batch of images at once?
- Paid accounts can compress up to 100 files at once and download them as a single ZIP; free accounts can batch up to 5.
- How long are my files stored before deletion?
- Everything is transferred over HTTPS; inputs are deleted within 6–24 hours and outputs within 24 hours.
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Compress image files online while keeping JPG, PNG or WebP output. Choose quality, compare file sizes, and download privately. Free to start, no signup.
Compress Image