GrumpToolsImage
Stack the three edits every image needs: crop to the right framing, resize to exact dimensions, and compress until it is light enough for the web, with a live preview and an estimated file size before you commit.
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Drag a crop box over the image, or use the symmetric mode to trim both sides evenly.
Set exact width and height with an aspect-ratio lock, or use the 50%, 75%, and 150% scale presets.
A 1 to 100 quality slider with sensible presets, plus a live estimate of the output size and savings.
Crop, resize, and compress apply as one ordered pipeline, so you can tweak any step before processing.
Process images free every day without an account.
Drag and drop PNG, JPG, WebP, or GIF.
Crop, resize, and set compression quality, with a live preview and size estimate.
The final render takes seconds; download the optimized image.
Typically 50 to 80 percent smaller with minimal visible difference, depending on the source image. The quality slider and live size estimate let you find the exact balance.
Downscaling keeps images sharp thanks to high-quality Lanczos resampling. Enlarging beyond the original size always costs some sharpness, in any tool.
This tool keeps your original format and focuses on crop, resize, and compression. To convert between PNG, JPG, WebP, GIF, HEIC and more, use our File Converter.
PNG, JPG, WebP, GIF and other common image formats. The output stays in the same format you uploaded.
Free accounts can upload files up to 1 GB per file. Pro raises the limit to 3 GB and Premium to 5 GB. File Transfer has its own, much higher limits: 10 GB per transfer on Pro and 100 GB on Premium.
GrumpTools is in beta and runs on a small amount of hardware, so every limit you see is set to what can genuinely finish rather than to what sounds good. We would rather tell you up front than take your file and fail an hour later. These caps are the first thing we raise as the userbase grows and we add capacity, and paid plans are what fund that, so the limits move up over time instead of down.
Files are processed on our servers and deleted automatically within 24 hours. They are never shared, published, or used for anything except running the job you asked for. The one exception is transcription: the Transcript Generator and Auto Subtitles send your audio (never the video, and never your account details) to our speech-to-text provider, Groq, which returns the text. See our Privacy Policy for the full list of processors.
Free plan: 20 uses per day. Pro and Premium raise or remove the limit.