ray.so turns a few lines of code into a presentable image in three steps: open the page, paste the code, pick a style. Dozens of languages are highlighted, themes are chosen rather than piled up, backgrounds take presets or a custom angle and colour, window size and padding are adjustable, and the export runs at 2x for high-resolution slides. No account, no watermark, and the whole project is open source.

An open source terminal emulator for Windows, macOS and Linux that also runs in a browser. SSH, SFTP and serial connections live in the same window, panes split in any direction, and eighteen built-in plugins extend it without leaving the app.