Does this tool call an AI model?

No. Sentiment is scored with an embedded AFINN lexicon subset entirely in your browser. No text is uploaded.

What does the compound score mean?

Compound is a normalized score from −1 (most negative) to +1 (most positive). Values near zero are treated as neutral.

Score emotional tone with an embedded AFINN lexicon — entirely in your browser

Paste reviews, tweets, or any prose to analyze

Analyze sentiment with AFINN, extract sentences for summaries, and rank keywords with TF-IDF — all in your browser, no LLM required.

Normalize text for palindrome checks and privacy-preserving anagram analysis.

Convert text to binary or hex bytes and decode it back

Convert text between 14 different case formats including camelCase, snake_case, kebab-case with batch processing and advanced options

Count character, letter and word frequencies for text analysis

Find and replace text with optional regex, case, and multiline matching

Paste HTML and get clean Markdown. Configurable heading style, bullet marker, and code block style — all processed locally in your browser.