Convert, resize, and compress images on your Windows desktop. Your files stay local.
Morflo helps you prepare a photo for sharing, turn WebP into PNG, convert PNG to JPEG, or process a batch without touching the originals. Common image work uses an image engine built into the app: no account, upload, or FFmpeg setup required. Video conversion and animated GIF creation use a compatible locally installed FFmpeg/ffprobe pair when one is available.
Getting started · Compress images · Supported formats · Roadmap · Contribute
Real local conversions of three original illustrations: two smaller JPEGs and a transparent PNG that grew by 1.1%. This portfolio view is a continuous crop of the native ledger with an external brand header. Full native window · Capture procedure and sample provenance.
- Easy to share prepares a balanced JPEG, fitting large images within 1920 × 1920 px without stretching or enlarging smaller images. Transparent areas use the background you choose, with a visible warning.
- Smaller file tries a smaller-quality JPEG for opaque images. Transparent images use WebP when available, or alpha-preserving PNG with the built-in engine. The actual result can be larger; the receipt tells you.
- Keep transparency selects PNG at the original dimensions for images with transparency.
- Batch processing applies an outcome separately to compatible selected images. Each file retains its metadata and animation choices.
- Measured results show the actual output format, dimensions, bytes and signed size change beside each unchanged source. Planned outputs stay clearly labeled until conversion finishes. Batch totals count only successful, measured files. Reveal each result directly in its folder.
- Finish interrupted batches filters failed and canceled files into Needs attention. Prepare retries together, review the preserved settings, then convert. Successful outputs stay available and are not processed again.
Manual format, quality and dimension controls remain under Manual settings. Selection changes settings; Convert processes all ready files. Animated sources require an explicit first-frame choice before still-image conversion.
The current source checkpoint is 0.3.0. Windows 11 x64 is the primary target. A public installer has not been published; use the development instructions to build from source. Local Windows installers are unsigned. A source checkpoint does not claim a signed, publicly distributed release.
Linux has earlier local WSL2/WSLg package evidence. macOS has no completed runtime validation. See the platform and release checklist.
Availability comes from the active Rust capability registry. A filename extension alone never makes an output available.
| Work | Built into Morflo | With a compatible local media engine |
|---|---|---|
| Read common images | PNG, JPEG, WebP, GIF, BMP, TIFF, ICO | Additional formats depend on the engine |
| Write images | PNG, JPEG, multi-resolution ICO | WebP and AVIF when validated encoders are available |
| Resize and batch images | Yes | Yes |
| Preserve transparency | PNG and ICO | PNG, WebP, AVIF and ICO as supported |
| Keep source metadata | Unavailable; choose Remove explicitly | Best-effort mapping, not byte-identical preservation |
| Convert video | Unavailable | MP4 and WebM when required codecs are available |
| Create a short animated GIF | Unavailable | Local moment strip, range preview and palette pipeline |
| HEIC/HEIF | Not verified | Not advertised as supported |
WebP input works with the built-in engine even though WebP output needs a media engine. Conversion evidence separates built-in tests from development-engine tests. No media-engine binary is included in the source repository or ordinary package.
- Media, names, paths, metadata and thumbnails stay on your device.
- There are no accounts, ads, analytics, crash uploads or conversion-time network calls. Runtime assets are local.
- Original files stay unchanged. Existing outputs receive a numeric suffix by default; replacement is never silent.
- Output is written to an owned temporary file and published only after a successful conversion and output inspection.
- Queue history and previews are session-only. Visible ledger thumbnails load serially and are released offscreen; the selected output has a larger preview.
- On Windows, Morflo can be an Open with candidate for its conservative handler set. It does not take over your default apps.
- Convert PNG to JPEG and WebP to PNG
- Compress and resize images offline
- Recover an interrupted batch
- Report a bug
- Suggest an improvement
- Security reporting
- Build, test and package
- Changelog and roadmap
Morflo's source, including its built-in image engine, is dual licensed under MIT OR Apache-2.0, at your option. See LICENSING.md and third-party notices. An external FFmpeg build has its own terms. Redistributing an engine requires separate review of the exact build; see media-engine distribution.