Compress images in seconds
Reduce PNG, JPEG, WebP and GIF file sizes while keeping quality. All processing happens in your browser — files never leave your device.
How It Works
Upload Images
Drag & drop or select images from your device. All formats supported.
Adjust Settings
Choose quality, output format, and max dimensions to suit your needs.
Compress
All processing happens locally in your browser — secure and private.
Download
Download individually or as a ZIP archive. Ready for web or storage.
Free Online Image Compressor — Shrink Photos Without Uploading
This free image compressor reduces the file size of PNG, JPEG, WebP and GIF images directly in your browser. Add a single photo or a whole batch, choose a quality level and optional maximum dimensions, preview the estimated saving, and download the smaller files. Because the compression happens on your device with the Canvas API, your pictures are never uploaded, making the tool suitable for screenshots, ID photos, work documents and client images.
Smaller images load faster on websites, send more easily by email or chat, take less space on your phone or cloud drive, and stay under the upload limits that many platforms enforce.
What you can do
- Compress in bulk — process many images at once and download them individually or together as a ZIP.
- Balance size and quality — the quality slider lets you choose aggressive shrinking or near-lossless clarity.
- Resize at the same time — set maximum width/height so oversized phone photos are scaled down as they compress.
- Convert formats — choose the output format that fits the job, from photographic JPEG/WebP to sharp PNG graphics.
- Stay private — no upload, no account, no watermark; everything runs locally.
JPEG, PNG or WebP?
Use JPEG for photographs and continuous-tone images where a small, invisible amount of loss is a good trade for a much smaller file. WebP often beats JPEG on size at the same visual quality and is supported by every modern browser. PNG is lossless and best for screenshots, logos, signatures and images with text or transparent backgrounds, so the compressor preserves PNG quality rather than degrading it.
Frequently asked questions
Are my photos uploaded to a server?
No. Compression runs entirely in your browser with the Canvas API. Images are never transmitted or stored, so the tool is safe for private documents.
How much smaller will images become?
It depends on the format, resolution and quality level. JPEG and WebP photos commonly shrink by 50-80%, and you can preview the estimated saving before downloading.
Which formats are supported?
PNG, JPEG/JPG, WebP and GIF. You can batch-compress, convert the output format and cap dimensions in one pass.
Does compression reduce visible quality?
JPEG and WebP remove data that is hard to notice, so moderate settings usually look identical on screen at a fraction of the size. PNG stays lossless, and you control the quality slider.
Is there a sign-up, watermark or limit?
No account, no sign-up, no watermark and no fee. Batch size is bounded by your own device's memory, not a server quota.
More free tools
Turn pictures into a document with our image to PDF converter, clean up images with the watermark remover, or see all free online tools.