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Lemon - Windows 0.3.0

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@Kataruna Kataruna released this 24 Oct 12:14
· 36 commits to main since this release

Lemon for Windows 10 (2004 or later) and 11, 64-bit.

What's new in 0.3.0

  • Welcome guide on first launch. Pick which kinds of files you want to convert (videos and music, documents, making PDFs, shrinking PDFs) and Lemon installs the free converter for you. Then an animation shows how the wheel works: drag, shake (or press your key), drop. Reopen it any time in Settings › About.
  • Update check. Lemon tells you when a newer version is out, on the Convert page and in Settings › About. Nothing installs by itself; you can turn the check off in Settings › About.
  • Wheel-opening settings (shake the mouse and/or a key) are the same in Settings and on the Wheel tab.

Which file?

Lemon-0.3.0-Setup.exe (recommended) Lemon-0.3.0-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

  1. Download Lemon-0.3.0-Setup.exe and run it.
  2. If Windows says "Windows protected your PC", click More info › Run anyway (Lemon isn't code-signed yet; Windows only asks once).
  3. 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.
  4. Finish, and Lemon starts. It installs to %LOCALAPPDATA%\Programs\Lemon.

Portable

  1. Download Lemon-0.3.0-Portable.exe and put it where you like (e.g. Documents\Apps).
  2. 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.
  3. 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-0.3.0-Setup.exe -Algorithm SHA256
File SHA-256
Lemon-0.3.0-Setup.exe 5bad85a2b8197a7d693c661000460895673acfd717c3dab70f6679b7242c6f78
Lemon-0.3.0-Portable.exe cdad8db3f88641d497c67cda3ba1498680e00b40594b9f0846b2e62a976af0bb

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.