Readability Checker
Score how easy your writing is to read with Flesch reading ease and an approximate grade level. Free and private.
Know how hard your writing is to read
This readability checker runs two well-known formulas on your text. Flesch Reading Ease gives a score from roughly 0 to 100, where higher is easier, and the Flesch-Kincaid grade level estimates the US school grade a reader needs to follow along. Both lean on the same idea: shorter sentences and shorter words read easier. We estimate syllables by counting vowel groups, so the numbers are a solid guide rather than a perfect measurement, and nothing you paste ever leaves your browser.
Save the version that finally scored well
Tightening a paragraph until it reads cleanly takes real effort, and it is maddening to lose that version to the next round of edits. Relic keeps an end-to-end encrypted, searchable history of everything you copy across every device, so the draft that finally hit the right grade level is always recoverable. Checking readability is free. Keeping your best rewrite is the part Relic handles.