Lapce

Lapce is a lightning-fast, open source code editor written in Rust, designed to deliver native GUI performance with GPU acceleration through Floem, a custom Rust UI framework developed by the same team. Now at version 0.4.2 with over 38,600 stars on GitHub, the editor treats any lag in launch time or keystroke latency as a bug to be fixed, targeting a truly instantaneous experience from startup through every editing action. Syntax highlighting is powered by Tree-sitter, providing faster and more accurate highlighting than regex-based approaches, with support for structural editing and text object selection. Built-in Language Server Protocol support delivers code intelligence including autocompletion, diagnostics, code actions, go-to-definition, and hover documentation without additional configuration. The Vim-like modal editing mode is built directly into the editor core, requiring no plugin installation, providing text objects, marks, registers, and surround pairs for Vim users. The WASI plugin system enables extensions to be written in any programming language that compiles to WebAssembly System Interface, including Rust, C, C++, Go, Zig, and AssemblyScript, eliminating the need to learn a proprietary extension language. The integrated terminal opens at the workspace path without leaving the editor, supporting split panes and customizable shell integration. Remote development capabilities allow connecting to remote machines with a local-quality editing experience, complemented by Lapdev for managing remote development environments with production-identical configurations. Available for Linux as tar.gz packages for x86 and ARM architectures, Windows as MSI installer and portable zip, and macOS as a universal DMG. Open source under the Apache 2.0 license, developed by Lapdev.