Five Seven Five

a minimal haiku editor

a grid of lined squares to build a little poem of five seven five

A small, local-first haiku editor with live syllable counting. Runs as a single HTML file. No accounts, no tracking, no backend.

Features

• Write and save haikus (5–7–5 by default)
• Live syllable counting (English and Spanish, heuristic)
• Local storage in the browser
• Export/import library as JSON
• Download individual or all haikus as Markdown

How to use

1. Download five-seven-five.html
2. Open it in your browser (Chrome, Safari, Firefox)
3. Write haikus
4. Export regularly if you care about backups

For Obsidian users:

• Save downloaded .md files into your vault
• Or keep five-seven-five.html inside your vault and open it in a browser

Important

Haikus are stored locally in your browser. Clearing browser data will remove them. They won’t sync between browsers or devices. Backup to .md or .json often!

Export regularly if you care about keeping them.

About syllable counts

Syllable counts are approximations. They will occasionally be wrong. Poetry is allowed to disagree.

Customisation

This is a single-file project. Edit the HTML/CSS/JS directly to:

• Change colours
• Adjust layout
• Tweak syllable rules

Changelog

Feb 10, 2026

• v1

March 10, 2026

• v1.1;
• Added option to delete library
• Fixed .md export format
• display creation date rather than updated

License

MIT