Free image tools, online, all processing in your browser
A complete set of image editing tools that run entirely in your browser. Compress photos to reduce file size, resize to exact dimensions, convert between formats, rotate or flip orientation, and crop to any shape. All processing runs locally.
Every tool uses the browser's built-in Canvas API. Your images are processed in memory and the result is downloaded directly to your device.
Photos carry more than pixels. Every JPEG from a modern phone has an EXIF metadata block embedded inside it: the GPS coordinates of where the shot was taken, the camera make and model, the time of day, sometimes the serial number of the lens. When you upload a personal photo to a free online compressor, you hand all of that to whoever runs the service.
Browser-based tools sidestep the problem. Your photo is read into the tab's memory, the pixels are transformed, and the result is offered back to you as a download. The file never leaves your computer. Neither does the metadata.
Speed is the other reason. Uploading a 10 MB image over a typical home connection takes 15 to 30 seconds. The compression itself takes maybe half a second once the file reaches the server, then the result has to come back. With Canvas API running locally, the whole job finishes in the time it would have taken to start the upload.
How browser-based image tools work
Every tool on this page leans on one browser API: Canvas. When you drop a file onto the page, the browser reads it into a Blob, decodes it into an ImageBitmap, and draws it onto an off-screen <canvas> element. From there, JavaScript can read every pixel, write new pixels, scale, rotate, crop, or re-encode to a different format and quality level.
Canvas has shipped in every major browser since 2010, so the same code runs on Chrome, Firefox, Safari, and Edge, both on desktop and on mobile. After processing, the result is wrapped into a Blob and offered as a download via a temporary object URL. When you close the tab the URL is revoked and the image is gone from memory. No IndexedDB cache, no service worker holding onto the file, no analytics ping recording what you did.
In-browser tools compared with the alternatives
Browser-based isn't always the right answer. Here is when it makes sense and when it doesn't.
Approach
Privacy
Speed for one file
Best for
In-browser (this site)
All local
Processed locally
Personal photos, sensitive images, occasional use
Upload-based image services
Server-side
Upload + process + download
Large batch jobs with public images
Desktop image editors
All local
Fastest
Daily professional work, complex edits
For most one-off jobs (shrinking a screenshot to fit a Slack message, resizing a profile picture, converting a HEIC photo to JPEG), in-browser is the simplest path. For batch processing thousands of images a day, a dedicated desktop tool with scripting support is usually faster.
When to use these tools
Use image compression before uploading to a website or sending in chat. Pair with image conversion to switch between JPEG, PNG, and WebP.
For social media posts, resize to platform-specific dimensions, then crop to a square or aspect ratio.
Need to embed an image directly in HTML or CSS? Convert it to a Base64 data URI.
Building a website? Generate a full set of favicons from one source image in all standard sizes.
Want to extract the exact color of something in a screenshot? Use the image color picker.
Frequently asked questions
Are these image tools free?
Yes. Every tool is free with no usage limits, no account required, and no watermarks on the output.
Do my images get uploaded to a server?
No. Each tool uses the browser's Canvas API to read, transform, and re-encode your image locally. All processing runs in your browser.
What image formats are supported?
Most tools accept JPEG, PNG, and WebP as input. Output format depends on the tool. JPEG and PNG are universal, WebP is roughly 25 to 35 percent smaller than JPEG at equivalent quality.
Does the Canvas API strip EXIF metadata?
Yes. When an image is re-encoded through Canvas, the original EXIF block is dropped. That includes GPS coordinates, camera make and model, capture time, and any other embedded metadata. The output file has none of it.
What is the largest image I can process?
Practical limits depend on your device's memory. A modern laptop handles 40 to 60 megapixel photos comfortably. Phones manage 20 to 30 megapixels. Very large images may freeze the tab briefly during decoding.
Why does the compressed file sometimes look softer?
JPEG and WebP are lossy formats by design. Higher compression discards visual information that the encoder judges to be less perceptible. Drop the quality slider less aggressively, or switch to PNG for a lossless output.
Can I use these tools offline?
After the first visit, yes. The whole site is a static export, so once your browser has cached the JavaScript and HTML, you can open any image tool without an internet connection.
Do these tools work on iPhone and iPad?
Yes. Safari on iOS supports the Canvas API the same way desktop browsers do. Drag and drop is replaced by a tap-to-pick file flow, but the processing is identical.