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Category · 14 tools

Free image tools for faster, cleaner files

Most image problems are file problems: a PNG that is 14 MB too large for a form, a HEIC photo that a Windows PC will not open, a marketing screenshot that needs to be exactly 1200 pixels wide. This category collects the fixes and skips the image-editor learning curve — upload, pick a setting, download.

The conversions and compressions here run inside your browser using the Canvas API, which means the original photo is never uploaded and no account is needed. You can batch the repetitive jobs — a folder of photos for a listing, an essay's screenshots — without installing a desktop suite.

Convert, compress or resize — pick the right fix

These sound similar and solve different problems. Conversion changes the format (JPG to WebP) and may change quality as a side effect. Compression keeps the format and deliberately lowers quality to reduce file size. Resizing changes the pixel dimensions, which is what upload forms actually mean when they say an image is too large. If a form rejects your photo because of dimensions, resize it; if it rejects the file size, compress it; if the platform does not accept the format, convert it.

For photographs, JPG at quality 80–85 is a sensible default and WebP is usually 25–35% smaller at the same visual quality. PNG is for screenshots, logos, transparency and anything with sharp edges or text. HEIC is the iPhone's efficient camera format, but many Windows programs and web forms still do not accept it — converting to JPG is the pragmatic fix, keeping the original file untouched.

A job portal rejects a 6 MB phone photo
Image Compressor at quality 80 and 2000 px width usually lands under 1 MB with no visible loss.
A logo needs a transparent background
Keep PNG. Converting to JPG will fill transparency with white and soften the edges.
Faster-loading web images
Convert JPG or PNG to WebP and keep a JPG fallback only if you still support very old browsers.

Guides for Image Tools

All guides

The format background, trade-offs and failure modes behind these tools — written for people who want to know why a conversion works the way it does.

Image Tools questions

Which image formats are supported?
The image tools accept JPG, JPEG, PNG and WebP. HEIC files from iPhone and iPad cameras can be converted to JPG or PNG with the HEIC to JPG tool; output formats include JPG, PNG and WebP.
Will I lose image quality?
Lossy formats such as JPG and WebP always discard some information to save space. The tools let you choose a quality level, and the default settings are picked to be visually indistinguishable from the original at normal viewing size. PNG conversions are lossless.
Do the image tools upload my photos?
No. Image conversion, compression, resizing and cropping all happen in your browser tab. Photos never leave your device, and no copy is stored by FormatFlow.
How small can I compress an image?
That depends on the subject and how it will be used. A 4 MB phone photo commonly becomes 300-800 KB at quality 80 with no visible difference on screen. Product and logo images with flat colours compress much further than detailed nature photography.
Can I convert several images at once?
Yes for the tools that make sense in batch — conversion, compression and resizing accept multiple files. Each file is processed separately in the same tab and you can download the results one by one.

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