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9 Free Online Image Tools

Almost every online image converter works the same way: you upload your photo, a server processes it, and you take it on trust that the copy is deleted afterwards. These 9 tools do not work that way. Every one of them decodes, transforms, and re-encodes your images inside the browser tab using Canvas and WebAssembly, so the file never leaves your device — which is the difference between a convenient tool and one you can point at a passport scan or a client photo. The set covers format conversion (HEIC, PNG, JPG, WebP, AVIF, SVG, GIF, BMP), resizing and thumbnail generation with presets and a file-size cap, batch compression with a quality slider, and an AI background remover for portraits that also runs locally.

All 9 Image tools

What you can do with these image tools

Most of these accept several files at once, so a batch of screenshots or a folder of phone photos is one operation rather than twenty.

  • Convert between formats — Image Converter handles any-to-any, and the dedicated HEIC to JPG, PNG to JPG, JPG to PNG, SVG to PNG, and WebP to PNG pages cover the common one-way jobs.
  • Resize — set an exact width and height, a preset such as 1280×720 or 1200×630, a maximum dimension, or a percentage, and crop or letterbox to fit.
  • Compress — reduce JPG, PNG, and WebP file size with a quality slider and a live before-and-after byte count.
  • Cap file size — resize down to a target such as 50 KB when an upload form refuses anything larger.
  • Remove a background — erase the background from a portrait or headshot and export a transparent PNG or a solid colour.

Which format should you convert to?

JPG is right for photographs where a small amount of loss is invisible and file size matters, but it cannot store transparency. PNG is lossless and keeps an alpha channel, which makes it the safe choice for logos, screenshots of text, and anything with a cut-out edge — at the cost of a much larger file for photographic content. WebP sits between them: markedly smaller than both at similar quality, with transparency support, and now supported by every current browser. HEIC is what an iPhone records by default and what most non-Apple software cannot open, so converting to JPG is usually about compatibility rather than quality. If you are shipping images to a website, WebP first with a JPG fallback is still the sensible default.

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Frequently asked questions

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No. All 9 image tools process files locally in your browser using Canvas and WebAssembly. Nothing is transmitted, so there is no copy on a server to be retained or leaked — you can even use them offline.

Yes. The converters, the compressor, and the resizer all accept a batch of files, process them one after another on your device, and let you download the results together.

HEIC is the high-efficiency format iOS records by default, and most Windows software and web forms do not support it. Converting to JPG makes the photo readable everywhere, at a slightly larger file size.

Converting to a lossless format such as PNG does not. Converting to JPG or WebP re-encodes with lossy compression, so quality depends on the setting you choose — and repeatedly re-saving the same JPG degrades it each time.

Use Image Resizer, which can target a maximum file size such as 50 KB or 2 MB by adjusting dimensions and quality until the output fits, or Image Compressor if the dimensions must stay as they are.

No. It runs an AI segmentation model in your browser, free and unlimited, with no sign-up. The model downloads once on first use and then works on your device.