Compare locally, review meaningful changes, and share a clear report. No AI or document upload required.
TXT / MD / CSV / LOGDOCXPDF textLocal-first
VERSION 01VERSION 02
− Removed+ Added~ Updated
COMPARISON WORKSPACE PRIVATE
Compare two versions
Nothing is uploaded. PDF support requires PDF.js. If not installed locally, the app loads pinned PDF.js code; documents stay local.
01
Original document
Earlier version
No file selected
02
Revised document
Updated version
No file selected
Start with two documents or choose Try example.
COMPARISON RESULTS
Changes at a glance
Text changes only
All changes0
Added sections0
Removed sections0
Modified sections0
0 / 0
Share your findingsChanges and reviewer notes are private until you download a report or session. Session files contain both full document texts.
HOW IT WORKS
Precise text comparisons, without an upload.
Document Comparison Studio extracts readable text before comparing sections. Revisions, insertions, and deletions become easy to review even when document formats differ.
01
Choose two documents
Open TXT, DOCX, or supported text-layer PDFs, or paste content directly. Each side can use a different supported format.
02
Review changes
Switch between side-by-side and unified redline views, navigate changes, and optionally ignore whitespace or case.
03
Export findings
Download TXT, CSV, or standalone HTML reports. Print the results to PDF through your browser’s built-in print dialog.
Scope: Text content only. This tool does not compare fonts, layout, images, tables visually, hyperlinks, or meaning. Scanned PDFs require OCR elsewhere; password-protected PDFs are not supported. Files are not saved to browser storage; optional session downloads contain the full extracted document texts. PDF.js code may be downloaded from a public CDN if not installed locally.
Using Document Comparison Studio
Paste two document versions or load supported local files, then compare extracted text. Navigate highlighted changes, record review status and notes, and export reports or a changes-only handoff ZIP. Save session JSON to retain full source texts and settings.
This compares extracted text, not visual page layouts or Word formatting/tracked changes. There is no OCR, semantic move recognition or collaboration. PDF extraction needs optional PDF.js 5.4.296, using jsDelivr when the local engine is absent; document bytes are processed locally. Session JSON includes both complete texts, whereas handoff ZIP contains changed excerpts. File, text, section and PDF-page budgets apply.
Choose a full comparison session or an excerpt handoff
Session JSON: preserve both complete extracted texts, supported options and reviewer notes.
TXT, CSV or HTML: share supported comparison/review reports.
Handoff ZIP: package supported changed excerpts rather than assuming it is a full-source session backup.
DOCX/PDF inputs: compare supported extracted text, not all visual document features.
Practice: review one fictional wording change
Enter a short fictional draft on each side, changing one phrase in the newer version.
Compare the text, navigate the highlighted difference and record a review note.
Choose a report for discussion or a session for continuing, checking how much source text the file contains.
This is an authored review exercise, not a parsed document or a confirmed change report.
Document comparison questions
Will this compare scanned pages, visual layouts or Word tracked changes?
No. It compares extracted text, without OCR, visual page differences, formatting comparison or Word tracked-change semantics. PDF text extraction can also change reading order.
Does local PDF processing guarantee offline use or private exports?
No. The optional PDF.js loader downloads code when the local engine is absent. Session JSON contains both full texts and notes; review its contents before sharing, separately from a changes-only handoff.
