Every tool here runs on the Canvas API inside your own browser. Your photos are read from disk by the page, processed in memory, and handed back as a download — they are never uploaded to a server, which is why there is no queue, no size cap imposed by an upload limit, and no copy of your files sitting in someone else’s storage afterwards. The counter on each tool page monitors network activity while your files are being processed so you can confirm that rather than take it on faith.

The conversion tools exist mostly because of format mismatches. HEIC is what iPhones save photos as, and Windows and Android frequently cannot open it. WEBP is what you get saving images from most websites, and desktop software and upload forms often reject it. In both cases the picture is fine — only the container is inconvenient, and converting to JPG or PNG resolves it.

Compressing and resizing solve a different problem: files too large to send or too heavy for a web page. Resizing reduces the pixel count and usually saves the most, while compression trades a little visual quality for a smaller file. Used together they will typically take a phone photo from several megabytes to a couple of hundred kilobytes with no visible difference on screen.

FAQ

Are my images uploaded to a server?

No. All processing happens in your browser using the Canvas API, and for HEIC a WebAssembly decoder that runs locally. Each tool page shows a live network monitor during processing that stays at zero bytes.

Is there a file size or batch limit?

There is no limit imposed by us, because nothing is uploaded. The practical ceiling is your device’s memory. Very large batches of high-resolution images may slow down on older machines.

Which formats are supported?

JPG, PNG, and WEBP everywhere, plus HEIC and HEIF as input on the dedicated HEIC converters.

Should I compress or resize to make a file smaller?

Resize first if the image has more pixels than it will actually be displayed at — that usually saves the most. Then compress if it still needs to be smaller.

Do the tools add a watermark?

No. There are no watermarks, no signup, and no limit on how many files you convert.