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Lemon - Windows 0.2.0
Lemon for Windows 10 (2004 or later) and 11, 64-bit. The first public release.
Which file?
| Lemon-0.2.0-Setup.exe (recommended) | Lemon-0.2.0-Portable.exe | |
|---|---|---|
| What it is | Installs Lemon for your user | One file you run from anywhere, nothing to install |
| Admin rights | Not needed | Not needed |
| Start menu entry and uninstaller | Yes | No |
| Right-click Convert with Lemon, start with Windows | Ticked in setup (or later in Settings) | In Settings |
| Remove-background AI models | Setup can download them | Downloaded in Settings |
Both keep settings in %LOCALAPPDATA%\Lemon, so you can switch between them.
Install guide
Installer
- Download Lemon-0.2.0-Setup.exe and run it.
- If Windows says "Windows protected your PC", click More info › Run anyway (Lemon isn't code-signed yet; Windows only asks once).
- Pick your options:
- "Convert with Lemon" in the right-click menu: convert straight from File Explorer.
- Start Lemon when I sign in: keeps the conversion wheel ready. The wheel only works while Lemon is running.
- Download the AI model for Remove background: BiRefNet Lite (224 MB, recommended) is ticked; BiRefNet full quality (973 MB, needs more memory) is optional.
- Finish, and Lemon starts. It installs to
%LOCALAPPDATA%\Programs\Lemon.
Portable
- Download Lemon-0.2.0-Portable.exe and put it where you like (e.g.
Documents\Apps). - Double-click it (same SmartScreen note as above). The first launch takes about 2 s while it unpacks to
%TEMP%\.net\Lemon; later launches are instant. - Optional, in Settings (gear, top right): the right-click menu, start with Windows, and Background remover models. These point at the file where it is now: if you move or rename it, switch them off and on again.
Check the download (optional)
Get-FileHash .\Lemon-0.2.0-Setup.exe -Algorithm SHA256| File | SHA-256 |
|---|---|
| Lemon-0.2.0-Setup.exe | 240505af9e1c12919ca060e8b4e6ec6d88ec4f64a8df3031d1fe2cd1297e947d |
| Lemon-0.2.0-Portable.exe | f3d9237011dbb75b1fb6bc668e9807998746af6fff0a6949badd3174d814e66b |
First steps
- Batch: drop files or folders on the window (or Add files), pick a preset per file or Set all to, click Convert. Results are saved next to the originals (or a folder you choose in Settings › Output).
- Conversion wheel: while Lemon runs (minimized or in the tray is fine), drag files anywhere and shake the mouse or press Space. Drop on a format to convert right away, or on the lemon to queue. Switch rings with the chips under the wheel, Tab, the number keys or the scroll wheel.
- Wheel tab: look (themes, blur, opacity, center emoji), your own rings, the Convert ring per file kind, and where the wheel opens, with a live preview.
- Closing the window keeps Lemon in the notification area so the wheel keeps working; right-click the lemon by the clock to quit.
Optional tools
Images (PNG, JPEG, WebP, AVIF, GIF, TIFF, BMP, ICO, HEIC input, PDF output) work out of the box. For more, install these free tools; Lemon names the missing one when you add a file it can't convert, and finds tools without a restart.
| For | Install (PowerShell) |
|---|---|
| Audio and video, Optimize for videos | winget install Gyan.FFmpeg |
| Documents (DOCX, ODT, RTF, HTML, Markdown, EPUB) | winget install JohnMacFarlane.Pandoc |
| Office files to PDF | winget install TheDocumentFoundation.LibreOffice |
| Optimize for PDFs | Ghostscript, from ghostscript.com |
Updating and uninstalling
- Update: run a newer Setup over this one (quit Lemon first: right-click the lemon › Quit Lemon), or replace the portable file. Settings, presets and models are kept.
- Uninstall: Settings › Apps › Installed apps › Lemon › Uninstall (also removes the right-click menu and start with Windows). Portable: switch those two off in Lemon's Settings, quit, delete the file.
- Settings, presets and models stay in
%LOCALAPPDATA%\Lemon; delete that folder to remove them too.
If something's off
- No wheel: make sure Lemon is running (lemon by the clock) and that shaking or a key is on in Settings › Conversion wheel. Drag actual files, not text.
- No Cut out ring: download a model in Settings › Background remover.
- A conversion failed: the error is on the file's row; details are in
%LOCALAPPDATA%\Lemon\errors.log. Please attach it to an issue.
What's in it
- Conversion wheel that pops up under the pointer mid-drag, with rings for Convert, Optimize (Lossless / Balanced / Smaller), Cut out (remove background with BiRefNet, on the GPU when possible) and Resize (4K / Full HD / HD / SD, same format, never enlarges).
- Wheel customization with a live preview: themes (incl. your Windows accent), tint, glass blur, opacity, center emoji, text color; up to 5 rings of your own; the Convert ring per kind of file; the hub for switching rings.
- Batch queue with per-file presets and parallel conversion; your own presets on the Presets tab.
- Progress in the tray: the tray lemon becomes a progress ring while files convert, and a notification reports the batch when it finishes in the background.