Lapce is a code editor written in Rust that actually delivers on the 'lightning-fast' promise with rope data structures, GPU rendering via wgpu, and built-in LSP support

Every developer has felt the pain of sluggish editors that freeze on large files or take forever to start up. Lapce attacks this problem at the architectural level, using rope data structures from the Xi-Editor project for O(log n) text operations and wgpu for GPU-accelerated rendering. The result? An editor that stays responsive even with massive codebases.

What sets Lapce apart isn’t just speed—it’s the thoughtful feature set. Built-in LSP support means intelligent autocomplete and diagnostics work out of the box. Modal editing (Vim-style) is a first-class citizen, not an afterthought. Remote development feels local, and the plugin system uses WASI, so you can write extensions in Rust, C, or AssemblyScript instead of being locked into JavaScript. The built-in terminal keeps your workflow contained.

With 38k+ stars and active development, Lapce represents what happens when systems programmers build an editor. If you’re tired of Electron-based editors eating your RAM or want Vim-style editing without the configuration headaches, this is worth trying. Installation is straightforward with pre-built binaries for all major platforms.

⭐ Stars: 38057
💻 Language: Rust
🔗 Repository: lapce/lapce