
Nib beta
A lightweight, fast-startup plain-text editor for macOS
Features
Multi-Tab Editing
Work on several files at once. Drag to reorder tabs, pin the ones you want to keep, or split a tab alongside another for side-by-side editing.
Syntax Highlighting
20+ languages auto-detected from the file extension, including Rust, Python, TypeScript, Swift, and Kotlin. Togglable for very large files.
Find & Replace
Fast in-buffer search with match-case/whole-word toggles, replace, and replace all โ plus Go to Line.
CSV/TSV Table View
Toggle any .csv or .tsv file into an editable spreadsheet-style grid, staying in sync with the raw text underneath.
Markdown Preview
Inline, side-by-side split, or a live preview in its own tab โ with clickable GitHub-style task list checkboxes.
Image & SVG Viewing
Open PNG, JPEG, GIF, BMP, and WebP images directly, or view an SVG rendered alongside its editable source.
Crash Recovery
Unsaved work โ including in untitled tabs โ survives an app restart or crash automatically.
Fast & Lightweight
Sub-200ms cold start. Built with Rust, no Electron, no bundled runtime.
Native Look & Feel
Light and dark themes that follow your OS preference automatically, with a choice of color themes for each.
Download
Nib requires macOS 11.0 (Big Sur) or later. Universal binary for Intel and Apple Silicon.
Nib
LatestUniversal binary (Apple Silicon + Intel)
- Signed and notarized by Apple
- No Gatekeeper warnings
If your browser blocks the download, click "Keep" or "Keep anyway" in the download bar. The app is signed and notarized by Apple for your security.