Haiku Checker

Count syllables per line and check for the 5-7-5 pattern.

Line 1 — / 5
Line 2 — / 7
Line 3 — / 5
Waiting…
Syllable counting uses vowel-group detection with rules for silent-e, -ed endings, common prefixes, and consonant clusters. Results are estimates — English is irregular.
About this tool

Haiku Checker

Count syllables per line and check for the 5-7-5 haiku pattern. Free online syllable counter and haiku validator.

Haiku Checker is a free browser-based tool from South Fork Apps. There's nothing to install, no account to create, and no usage limit. Open the page, do the work, and move on.

How it works

  1. Open Haiku Checker in any modern browser on desktop or mobile.
  2. Enter or paste your input into the tool's main field.
  3. Adjust any options shown on the page to match what you need.
  4. Copy or download the result and continue with your work.

Why use a browser tool

Browser tools beat installable apps when the job is small. You don't have to manage updates, sign in, or wait for a heavy program to load. Haiku Checker runs entirely in your browser. Your input never leaves your device, no analytics watch what you type, and the page stops working the moment you close the tab.

Privacy and data

South Fork Apps tools process everything client-side in JavaScript. No server sees your data. Nothing is stored, logged, or sent anywhere. If you're working with sensitive content, you can verify by opening the page once, disconnecting from the internet, and watching Haiku Checker keep working.

More Text & Docs About South Fork Apps Privacy
Haiku Checker interface preview
Screenshot of the live Haiku Checker interface.
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