AnchorKite Readability Checker vs Hemingway Editor

AnchorKite Readability Checker is a free browser tool for evaluating pasted English text. It reports Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog, SMOG, Coleman-Liau, and Automated Readability Index scores. A headline grade estimate averages five grade-level formulas. The page also displays word, sentence, syllable, and letter counts, together with words per sentence and syllables per word. Analysis runs locally, with no network requests, analytics, transmission, storage, or logging of the text according to the page. After loading, the browser tab can continue working offline. Syllable counting uses an approximate heuristic, so irregular spellings and proper names can differ by a syllable. The maker advises treating scores as a sanity check because lists, code, dialogue, headings, abbreviations, and short passages can affect formulas. Guidance covers teachers, writers, workplace writing, general audiences, and specialist writing.

Hemingway Editor scores writing for readability and highlights sentences and issues that may weaken or complicate a message. Editor Plus adds rewriting for wordy sentences and passive voice, grammar fixes, and controls for tone, length and style. It also provides document review with writing feedback and suggestions, and supports importing and exporting Word, Markdown and HTML files. The Classic desktop app works offline and keeps writing on the computer; it can publish to WordPress or export HTML and Markdown for a blogging platform or CMS. Hemingway Editor is available on web, macOS and Windows. The free plan is available. Individual 5K annual access costs $8.33 a month, billed as 100 USD annually, and includes 5,000 AI sentences per month. Hemingway Editor 3 desktop costs $19.99, paid once and does not include new AI features. Hemingway says document content is discarded after processing and is not used to train AI models. For analysis or rewriting, content is sent through Hemingway to an LLM provider, currently OpenAI, Google or Anthropic, and then discarded. Editor Plus does not yet have SOC 2 or ISO certification.