Text Viewer Online — TXT Reader & PDF Highlighter

A text viewer displays plain text in a readable panel without opening a desktop editor. This text viewer runs in your browser: paste notes, logs, or code, or open a .txt file for instant reading with adjustable typography.

People search for txt viewer or txt reader when they need to inspect exports from servers, README files, or subtitles—formats that do not need Word or Google Docs. Everything stays local, which suits confidential logs and contracts.

Unlike a word processor, a dedicated viewer focuses on scrolling performance, search, and legibility rather than formatting toolbars.

Click Import .txt or drag a text file onto the page. The txt reader loads the full document into the panel with optional line numbers. Large files may take a moment; wait for the character count to update before searching.

You can also paste directly from the clipboard—useful when copying error stacks from Slack or email. The txt viewer preserves line breaks so stack traces stay aligned.

Supported uploads include .txt and plain text MIME types. For other extensions, rename to .txt or paste contents manually.

Full PDF annotation on canvas is complex; this tool offers a practical pdf reader with highlighter behaviour for searchable text. Upload a PDF and we extract text with pdf.js, then display it in the same viewer. Type a phrase in Find to highlight every match in yellow—ideal for locating clauses, names, or error codes.

Scanned PDFs without a text layer may extract empty content. In that case use our PDF Word Counter after OCR, or open the file in a dedicated scan tool. Digital PDFs from Word, LaTeX, or exports usually work well.

Page markers like --- Page 3 --- separate extracted sections so you know where content originated. For page-level PDF tasks (merge, split, rotate), browse the PDF tools category linked below.

Enter a search term and matches highlight automatically. Use Next and Previous to jump between occurrences—the active match uses a stronger highlight ring so you do not lose your place in long documents.

Highlighting is case-insensitive by default through the regex flag. Clear the search box to remove all marks and return to plain reading mode.

This in-document highlighter replaces Ctrl+F for demos and shared screens where browser find UI is distracting.

Increase font size and line height for accessibility. Sepia and dark themes reduce eye strain during long review sessions. Word wrap toggles help with log files that contain very long lines.

Line numbers help developers reference support tickets (see line 482). Turn them off for prose-heavy documents.

Statistics in the toolbar show lines, words, and characters—handy quick metrics without a separate word counter.

Text and PDF bytes are processed with FileReader and pdf.js inside your tab. Nothing uploads to our servers, which matters for NDA documents, customer data exports, and security incident logs.

Bookmark this text viewer for repeated use. No account or extension is required.

Need to count words in a PDF with analytics? Try PDF Word Counter. Want to minify HTML or CSS from the same project? Use the HTML and CSS minifiers in Text Utilities.

This page optimises for reading and highlighting; editing-heavy tasks may still belong in your IDE—but for quick txt reader and pdf reader with highlighter workflows, start here.