SmarterDiff

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

SmarterDiff is ranked #8 of 25 in document comparison software on Inferse. It runs on Android, iOS, Linux, macOS, Web, Windows. There is a free plan.

Compared on document comparison software

Free plan: Yessmarterdiff.com
PDF comparison: Yessmarterdiff.com
Office file comparison: Yessmarterdiff.com
Formatting changes: Yessmarterdiff.com
Redline output: Nosmarterdiff.com
Deployment: websmarterdiff.com

Facts

Purpose: SmarterDiff compares text, Word documents, PDFs, spreadsheets, folders, and images in a browser without uploading files.smarterdiff.com · 29 Sept 2026
Text comparison: Text diffs offer line, word, and character modes, with options to ignore case and whitespace.smarterdiff.com · 29 Sept 2026
Spreadsheet comparison: Excel and CSV comparison checks cell values and formulas and highlights changes with before and after values.smarterdiff.com · 29 Sept 2026
Image comparison: Image diffs use pixel comparison and offer overlay, side-by-side, and slider visualizations.smarterdiff.com · 29 Sept 2026
AI image analysis: The AI image analyzer uses EXIF, JPEG, FFT, and channel-noise signals and describes its result as a heuristic rather than a verdict.smarterdiff.com · 29 Sept 2026
Local processing: Comparisons run in the browser; the site says file data is not sent to its servers or external services.smarterdiff.com · 29 Sept 2026
Offline use: The site says comparisons work offline after the first page load, while the browser has cached the libraries.smarterdiff.com · 29 Sept 2026
Privacy and analytics: The site says Google Analytics records page-view metrics but does not receive files or comparison results; Google AdSense may set ad-targeting cookies.smarterdiff.com · 29 Sept 2026
Limits: The site says file size is limited by available computer memory and browser limits; scanned PDFs without embedded text cannot be text-compared.smarterdiff.com · 29 Sept 2026
Word document scope: SmarterDiff compares finalized .docx text and does not compare Word's tracked-change markup.smarterdiff.com · 29 Sept 2026
Automation and integrations: SmarterDiff is described as a manual, one-off browser tool and does not currently offer workflow automation or integrations.smarterdiff.com · 29 Sept 2026
Intended users: The About page identifies legal professionals, financial analysts and auditors, journalists and fact-checkers, and software developers as users.smarterdiff.com · 29 Sept 2026
Support: Users can report bugs or request features through the contact page and are asked to include browser, file format, and issue details.smarterdiff.com · 29 Sept 2026