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ToolStash

Free Image Tools

Compress, resize, crop and convert images in your browser. No uploads, no watermarks, and EXIF location data is stripped on the way out.

1 tool ready to use, 8 more planned.

Photos are among the most sensitive files people casually upload to free tools. A single holiday snap carries GPS coordinates, a timestamp and a camera identifier in its EXIF block. The tools on this page never send the image anywhere: the browser decodes it, applies your change, and re-encodes it on your own machine.

A useful side effect of that pipeline is privacy by default โ€” re-encoding drops the metadata, so the file you download no longer says where the photo was taken.

Image Tools you can use now

Planned

Scheduled, not yet built. Nothing here links anywhere โ€” no dead ends.

Coming soon

Image Resizer

Resize an image by pixels or percentage, with an optional lock on the aspect ratio.

Coming soon

Image Format Converter

Convert images between PNG, JPG, WebP and GIF in a couple of clicks.

Coming soon

HEIC to JPG

Convert HEIC photos straight off your iPhone into JPGs that open anywhere.

Coming soon

Background Remover

Strip the background out of a photo using a machine-learning model that runs in your browser.

Coming soon

Image Cropper

Crop freehand or to a fixed ratio, with a live preview of the result.

Coming soon

Passport & ID Photo Maker

Crop and resize a photo to official passport or visa dimensions, with Nepal, India, US and Schengen presets.

Coming soon

Favicon Generator

Build a complete favicon set โ€” .ico plus every PNG size you need โ€” from one image.

Coming soon

Image to Base64

Convert an image file into a Base64 string, or decode a string back into an image.

What you can do with these tools

Get a photo under an upload size limit, resize for a specific pixel dimension, convert between JPEG, PNG and WebP, crop to a fixed ratio, build a favicon set, produce a passport-sized photo to official dimensions, and remove a background.

How browser image processing works

The browser already contains fast, well-tested image codecs โ€” it needs them to display images at all. These tools reuse that machinery: the file is decoded into a bitmap, drawn onto an off-screen canvas where the edit happens, then re-encoded to JPEG, PNG or WebP. Heavier jobs such as background removal load a WebAssembly model, which is why those pages fetch more code than the rest and only do so when you open them.

Frequently asked questions

Are my images uploaded to a server?
No. Image tools here use the browserโ€™s Canvas API and WebAssembly image codecs, both of which run on your own device. The photo is decoded, edited and re-encoded in the tab, and the download is generated locally. Nothing is transmitted.
Is the image quality reduced?
Only where you ask for it. Resizing and cropping re-encode the image, which is inherently lossy for JPEG, so tools that do this expose a quality setting and show you the result before you download. Format conversion to PNG or WebP lossless keeps every pixel.
Which formats are supported?
JPEG, PNG, WebP and GIF are handled natively by every modern browser. AVIF works in current Chrome, Firefox and Safari. HEIC from iPhones needs a dedicated converter because browsers cannot decode it directly โ€” that tool is on the list.
Is EXIF metadata preserved?
Generally no, and that is usually what you want. Re-encoding through a canvas drops EXIF, which means GPS coordinates, camera serial numbers and timestamps are stripped from the output. If you specifically need metadata preserved, keep the original file.
How large an image can I process?
Browsers cap canvas dimensions rather than file size โ€” the practical ceiling is around 16,384 pixels on a side on desktop and lower on iOS. A 50-megapixel photo is fine; a stitched panorama 30,000 pixels wide may fail. Tools will tell you rather than producing a blank image.
Are there watermarks or a limit on how many images I can do?
No watermarks and no limit. There is also no batch quota, because there is no server cost per image for us to meter.

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