Convert images without uploading them
FiloTool’s universal image converter detects file content, decodes the image locally, applies transparency settings, and produces a validated download in the format you choose. Batch jobs continue even when one file fails.
Format comparison
Choose JPG for photographs, PNG for lossless transparency, WebP for modern compression, BMP for broad uncompressed compatibility, TIFF for lossless archival output, or ICO for icon files. AVIF is offered only in browsers with working encoding support. Compare the trade-offs in the JPG, PNG and WebP decision guide, then check measured samples in the image format benchmark.
How to convert
Drop one or more images, choose an output and its relevant settings, then select Convert all. Review per-file warnings and download files individually or together as a ZIP.
Practical limits
A file can be 80 MB and 40 megapixels at most, with a 16,384-pixel edge limit. Batches allow 30 files and 300 MB total. Conversion runs sequentially to limit simultaneous memory use, but decoded images can still strain low-memory devices.
When a conversion fails
Confirm that the extension matches the real file, try a current browser, and reduce oversized dimensions. HEIC, HEIF, and AVIF are containers with codec variants, so a supported extension does not guarantee that every file can be decoded.
Conversion changes the container; compression keeps the format. Use the same-format image compressor when JPG, PNG or WebP output should remain unchanged. For the local-processing model, read when a browser-based image converter is useful.
WebP to JPG in the universal converter
Upload a WebP, choose JPG under Output format, select a JPG quality and background colour, then convert. The pixel dimensions stay unchanged unless you use a separate resizing tool. JPG uses lossy encoding, so the result may be smaller or larger than the WebP source.
WebP can contain transparency; JPG cannot. Transparent pixels are flattened onto the selected background, white by default. For an animated WebP, this converter exports only the first frame and shows a notice.
If that is the only conversion you need, use the focused WebP to JPG converter with preselected settings.
Example conversions
The measured examples below use the deterministic 64 × 48 test fixtures and Chromium’s browser encoders. They demonstrate behavior, not guaranteed file-size savings; content, quality settings and browser encoders affect the result.
- WebP → JPG: the 934-byte photo fixture became a 1,295-byte JPG. It stayed 64 × 48, became opaque and downloaded as
photo-grid.jpg. - Transparent WebP → JPG: 730 bytes became 1,004 bytes at 64 × 48. Alpha was flattened onto white and the result was
transparent-grid.jpg. - PNG → JPG: the transparent 2,396-byte PNG became a 1,256-byte opaque JPG at the same 64 × 48 dimensions.
- JPG → PNG or WebP: the 1,328-byte JPG became a 5,927-byte PNG or an 890-byte WebP. Both stayed 64 × 48 and opaque.