WYSIWYG with a real source mode
Type markdown and see it rendered inline. Drop into a full CodeMirror 6 source view whenever you need it. Switch anytime.
Built for a markdown-first world
Markdown, modernized.
The calm, customizable editor for the way people write now — code, prompts, specs, docs, notes, and prose.
Calm by default
Beautiful WYSIWYG editing with a default that never gets in your way. Switch to source mode anytime.
Yours by design
Reshape the toolbar, themes, and layout to match how you actually work.
Open and free
MIT licensed. No account, no lock-in. Your files stay on your
disk as plain .md.
Calm by default. Yours by design.
A modern markdown toolkit
Everything you need. Nothing you don’t.
Customizable toolbar
Reshape the toolbar to match your workflow. Add, remove, and reorder buttons until it fits the way you actually work.
Command palette
Every action, one keystroke away. Press Ctrl+Shift+P,
type, hit enter. Discover features as you need them.
Five themes, light & dark
Default, Sepia, Nord, and Rose Pine — each carefully tuned for both light and dark modes.
Rich content blocks
Visual tables, Mermaid diagrams, Kanban boards, Gantt charts, code blocks, and task lists. All native, all inline.
Focus & typewriter modes
Fade everything but the current line. Lock the cursor to the center of the screen when you want to go deep.
Whether you’re shipping prompts, writing specs, maintaining docs, or drafting prose — Pennivo gets out of the way and shapes to fit.
See it in action
Designed with care, down to the pixel.
Download Pennivo
Free. MIT licensed. No account.