Uncrop
Uncrop is a free web tool for extending photos to fit Instagram formats.
What Uncrop is
Uncrop is a free web tool for extending photos to fit Instagram formats. It supports portrait (4:5), square (1:1), landscape (1.91:1), and Story/Reel (9:16) layouts. For local expansion, it offers edge pixel extrusion, symmetric reflection, ambient blur, and smooth smear; background choices also include solid colors, gradients, and mirror reflections. Uploads can be JPG, JPEG, PNG, WEBP, or HEIC. Uncrop says processing happens in the browser, photos are not sent to a server or stored, and traces are cleared when the tab is closed or refreshed. Downloads retain the upload format, and the original content is not compressed or downsized. There is no set file-size limit, though files over 50MB may take longer to process. The responsive tool works on modern smartphones and lists Chrome, Safari, Firefox, Edge, and Samsung Internet. After the page loads, processing and downloading can work offline. The free plan includes all features and does not require an account; advertising supports it. Gemini AI generative outpainting requires a paid Gemini API key.
Good
- Free plan includes all features without sign-up.
- Supports five listed image upload formats.
- Offers four Instagram layout formats.
- Photos are processed in the browser, according to Uncrop.
- Processing and downloading can work offline after page load.
Watch out
- Gemini AI outpainting requires a paid Gemini API key.
- Files over 50MB may take longer to process.
- The tool is web-based.
Who it suits
Uncrop suits people who want to adjust photos for Instagram layouts using a browser, including on a modern smartphone. Its local processing and offline option may be useful to people who prefer not to send photos to a server.
Verdict
Uncrop covers common Instagram proportions and multiple local expansion styles without requiring an account. Its browser processing and format-preserving downloads are useful details to consider, while AI outpainting has a separate API-key requirement.
Plans and prices
From Uncrop's own pricing page, checked 7 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | All features · no account or sign-up · supported by non-intrusive advertising |
The facts
Each one read from Uncrop's own pages, with the date it was checked.
What it does
- Background styles
- The FAQ lists blur backgrounds, solid colors, gradient effects, and mirror reflections.checked 7 Oct 2026
- External API option
- The homepage says Gemini AI generative outpainting requires a paid Gemini API key.checked 7 Oct 2026
- File size
- The FAQ says there is no set file-size limit, though files over 50MB may take longer to process in the browser.checked 7 Oct 2026
- Image formats
- The FAQ says it supports JPG/JPEG, PNG, WEBP, and HEIC uploads.checked 7 Oct 2026
- Image retention
- The FAQ says photos are not stored and traces are removed when the tab is closed or refreshed.checked 7 Oct 2026
- Instagram formats
- It offers portrait (4:5), square (1:1), landscape (1.91:1), and Story/Reel (9:16) formats.checked 7 Oct 2026
- Local expansion
- The homepage lists edge pixel extrusion, symmetric reflection, ambient blur, and smooth smear as instant local expansion methods.checked 7 Oct 2026
- Offline use
- The FAQ says photo processing and downloading can work offline after the page has loaded.checked 7 Oct 2026
- Privacy
- The FAQ says image processing happens in the browser and photos are not transmitted to a server.checked 7 Oct 2026
- Purpose
- Uncrop is an online tool for uncropping and extending photos for Instagram.checked 7 Oct 2026
- Quality and downloads
- The FAQ says the original content is not compressed or downsized and downloads retain the upload format at the highest quality setting.checked 7 Oct 2026
Where it runs
- Mobile and browsers
- The FAQ says the responsive tool works on modern smartphones and lists Chrome, Safari, Firefox, Edge, and Samsung Internet.checked 7 Oct 2026
