In your browser · nothing uploaded · free

Convert image

Name: Convert image — One4All by ASolution
Author: ASolution

Convert between JPG, PNG, WebP, GIF, TIFF, BMP, ICO and AVIF, and open HEIC photos from an iPhone — all inside your browser. Files are decoded locally; nothing is uploaded.

Open Convert image

Opens the tool in the One4All app on this site. Add your files, adjust the options, press Process, download the result.

How it works

Open the tool and add your files (drag and drop or choose). They stay in this browser tab.
Adjust the options below if you need to, then press Process.
Preview the result and download it. Close the tab and everything is gone.

Accepts: images (JPG, PNG, WebP, GIF, TIFF, BMP, HEIC, AVIF). Produces: images (JPG, PNG, WebP, GIF, TIFF, BMP, HEIC, AVIF). Category: Images.

Options

Output format: JPEG, PNG, WebP, TIFF, BMP, GIF, AVIF, ICO (icon)
Quality — Lower = smaller file. 75–85 is visually lossless for most photos.
Background for transparent areas (JPG/BMP)
Lossless (WebP only)
Keep EXIF metadata (camera, date, GPS)

Limits, honestly

HEIC and AVIF are decoded in your browser; HEIC output is available in the desktop app only.
First visit downloads the processing engine (about 19 MB, cached afterwards); after that no request carries your files.
One job runs at a time, and very large files can exhaust the browser tab's memory.
Needs a current browser (Chrome, Edge, Firefox or Safari) opened directly at asolution.app.

Questions

Is my file uploaded anywhere?

No. Convert image runs inside the page (WebAssembly). Your file is read into the browser tab's memory and the result is written back to your device. You can check the Network tab of your browser while it runs: no request carries your file.

Is it free? Do I need an account?

Free, with no ads and no watermark. You do not need an account to use any tool. There is also a free membership: join before 13 December 2026 and the tools stay free for you afterwards, for as long as the site runs. The tools themselves are identical either way.

Does it work offline?

Partly. Once the engine is cached your browser does the work without sending anything, but the page itself still has to be opened from asolution.app, so you need a connection to load it.