Supasnap

Supasnap is a web and desktop app that turns basic screenshots and code snippets into polished, shareable images. You can drag and drop an image or capture your screen directly, then use its editor to add a styled background, adjust margins, apply shadows, and include annotations like arrows, text, or drawings. It also formats code snippets with syntax highlighting and custom themes. The entire editing process happens in your browser, and you can export the final design in various formats.

The tool stands out for its depth of customization and privacy-first approach. Almost all editing features are available for free, including browser mockups, aspect ratio adjustments for social media, and a wide range of decorative options. A key benefit is that all image processing is done locally on your device; your data is only sent to a server if you choose to save a design to your account for later editing.

Supasnap is ideal for developers sharing code on social media, marketers creating engaging content for posts, and anyone who regularly shares screenshots in presentations or documentation. It removes the need for complex design software when you just need to quickly make a screenshot look clean and professional.