Compare software

Lepton vs massCode: catalog facts
Lepton	massCode
Best for: Developers who keep reusable code in GitHub Gists	Best for: Developers keeping snippets, technical notes and API requests in one local app
Free Free and open source under the MIT licence; donations are not accepted.	Free Free and open source.
Windows, macOS, Linux	macOS
Uses GitHub Gist as storage, so snippets stay in your own account No separate backend or data collection All 4 strengths for Lepton Uses GitHub Gist as storage, so snippets stay in your own account No separate backend or data collection Renders Markdown and Jupyter notebooks Tags and quick search for organizing many snippets	Snippets, notes, HTTP requests and diagrams in one app Local-first storage that works offline All 4 strengths for massCode Snippets, notes, HTTP requests and diagrams in one app Local-first storage that works offline Notes link to snippets and requests, with a graph view Command palette for finding anything quickly
Requires a GitHub account Full content search needs all snippets downloaded first All 3 limitations for Lepton Requires a GitHub account Full content search needs all snippets downloaded first Built on Electron	Broad feature set may be more than a snippet manager needs Platform support beyond macOS not confirmed here
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
Account needed	No account needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for Lepton hackjutsu.com/Lepton Catalog checked October 2, 2026	Official website Full listing and sources Sources for massCode masscode.io Catalog checked October 1, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.