Paste or drop your text here
PDF, Word, RTF, HTML or TXT — nothing leaves your browser
Paste or drop your text here
PDF, Word, RTF, HTML or TXT — nothing leaves your browser
Text Comparison Examples
Compare two texts side by side to see what changed. Load a text, code, CSV, or XML sample into the tool to try it yourself.
A Text Comparison Tool for Everyday Edits
Find text differences without reviewing every line by hand.
Use this online diff checker for pasted text, code snippets, and document revisions. Choose which whitespace, case, and punctuation differences to ignore.
Smart Text Compare
It highlights additions, removals, and changed text so you can review two versions side by side.
Browser-Based Processing
Text comparison runs locally in your browser.
Multiple File Formats
Choose the tool for your file type.
Folder Comparison
Reconcile directory folders side-by-side to instantly find missing, added, or modified files.
Smart Parsing
Automatically extracts readable text, ignoring trivial layout markup or system file code noise.
No Installation
Everything works online. No installations, licensing keys, or user logins required.
Fast Performance
Comparisons run locally; speed depends on your device and browser.
Browser-Based
Text comparison runs locally in your browser.
Why Smart Text Compare?
Smart Text Compare powers TextCompareo's side-by-side text comparison. It highlights inserted and deleted text so you can review edits in context. Choose a dedicated tool below for PDF, Word, spreadsheet, or folder comparisons.
Choose a Comparison Tool
Choose the tool for your file type.
Smart Text Compare
It highlights additions, removals, and changed text so you can review two versions side by side.
PDF Compare
Extract readable text from PDF documents and perform secure content diff comparison checks.
Word Compare
Parse Microsoft Word (.docx) documents to cleanly evaluate changes without formatting interference.
Excel Compare
Compare Excel files (.xlsx) side-by-side. Highlights modified cells and added/removed rows.
HTML Compare
Audit HTML scripts and templates, isolating content changes from layout code markup.
XML Text Compare
Compare XML text side by side.
Folder Comparison
Compare entire folders or ZIP archives. Identifies added, deleted, or updated files instantly.
CSV Comparison
Audit flat database CSV exports and table files side-by-side with local browser security.
RTF Comparison
Compare text structure of rich text documents without metadata files cluttering the results.
Recent Articles
Read our latest guides on comparing documents, files, and data online.
PDF Text Comparison vs Visual Comparison: What Each Detects
Six controlled PDF examples show when wording, page appearance, and file bytes disagree. Choose the right review method without trusting a similarity score alone.
Read GuideHow to Compare Markdown Files Without Missing Link Changes
Review Markdown wording, links, and code spacing with six tested examples. Learn when to use a text diff, an exact source diff, and the final preview.
Read GuideJSON Patch vs Merge Patch vs Text Diff
Compare JSON Patch, JSON Merge Patch, and text diff with a tested example. Learn array handling, deletion rules, media types, and when each method fits.
Read GuideHow to Compare Large Files Online: Limits and Workflows
Learn when browser comparison is appropriate, what affects memory use, and when to switch to desktop, command-line, chunking, or pre-filtering workflows.
Read GuideHow to Diff .env Files Safely Without Leaking Secrets
Compare .env files locally with Git, diff, PowerShell, a trusted editor, or key-only exports. Keep live credentials out of websites and rotate exposed secrets.
Read GuideDiffchecker Alternatives: Four Free Options Compared
Compare TextCompareo, WinMerge, Meld, VS Code, and Diffchecker by workflow, deployment model, limits, and suitability for sensitive material.
Read Guide