Image format conversion is one of the most common tasks for web developers, content creators, and designers. This comparison covers 10 image conversion tools — from FreeToolHub's browser-based converters to popular external services — so you can find the right tool without uploading your images to a server.
| Tool | Pricing | Privacy | Platforms | Key Features | Rating | Try it |
|---|---|---|---|---|---|---|
FreeToolHub HEIC ConverterFTH ✓ 100% browser-based | Free 100% free, no signup | 🌐 Browser No signup | Web | HEIC → JPG/PNGBatch conversionQuality controlNo upload | ★★★★☆ 4.5 | Open → |
FreeToolHub ICO GeneratorFTH ✓ Multi-size ICO | Free 100% free, no signup | 🌐 Browser No signup | Web | PNG → ICOMulti-size ICOFavicon packNo upload | ★★★★☆ 4.4 | Open → |
Squoosh (Google) ✓ Google-quality compression | Free 100% free, open source | 🌐 Browser No signup | Web | WebP/AVIF/MozJPEGQuality comparisonResizeSide-by-side compare+1 | ★★★★☆ 4.4 | Visit ↗ |
FreeToolHub WebP ConverterFTH ✓ Bidirectional WebP conversion | Free 100% free, no signup | 🌐 Browser No signup | Web | WebP ↔ PNG/JPGBatch conversionQuality controlNo upload | ★★★★☆ 4.3 | Open → |
FreeToolHub Image ResizerFTH ✓ Batch resize | Free 100% free, no signup | 🌐 Browser No signup | Web | Resize imagesAspect ratio lockBatch resizeFormat conversion+1 | ★★★★☆ 4.3 | Open → |
XnConvert ✓ Desktop app (fully offline) | Free 100% free for personal/edu | 🌐 Browser No signup | MacWindowsLinux | 80+ formatsBatch processing80 actions (resize/crop/filter)Multi-platform | ★★★★☆ 4.3 | Visit ↗ |
FreeToolHub SVG ConverterFTH ✓ SVG rasterization in browser | Free 100% free, no signup | 🌐 Browser No signup | Web | SVG → PNG/JPGSize controlBackground colorNo upload | ★★★★☆ 4.2 | Open → |
CloudConvert ✓ Widest format support | Freemium Free 25 conversions/day; Pro $9/month | ☁️ Server | Web | 200+ formatsHEIC/WebP/AVIF/SVGAPI accessBatch processing+1 | ★★★★☆ 4.2 | Visit ↗ |
FreeToolHub Image to Base64FTH ✓ Multiple output formats | Free 100% free, no signup | 🌐 Browser No signup | Web | Image → Base64Data URLCSS backgroundHTML img tag+1 | ★★★★☆ 4.1 | Open → |
Convertio ✓ Very wide format support | Freemium Free 10 min/day; Pro $9.99/month | ☁️ Server | Web | 300+ formatsImage/Audio/Video/DocOCRAPI access+1 | ★★★☆☆ 3.9 | Visit ↗ |
For privacy-focused conversion, FreeToolHub HEIC/WebP/SVG converters work entirely in your browser. For the widest format support, CloudConvert supports 200+ formats but uploads files to its server. For compression quality, Google's Squoosh offers the best AVIF/WebP compression.
Most online image converters like CloudConvert and Convertio upload your images to their servers. FreeToolHub image tools and Squoosh process everything locally in your browser using WebAssembly and Canvas API, so your images never leave your device.
Yes. FreeToolHub HEIC Converter converts HEIC to JPG/PNG entirely in your browser at no cost, with no signup and no upload. It supports batch conversion for multiple files.