What file types can I open?

Any plain-text file works: .txt, .log, .md, .csv, .json, .xml, .yaml, .env, source code files, and more. Binary files will display garbled output.

Is there a line limit?

The viewer displays up to 10,000 lines for performance. Larger files will show the first 10,000 lines with a notice.

Is my file uploaded to a server?

No. Everything is read locally in your browser using the FileReader API. Your file contents never leave your device.

Text File Reader

Upload and view any text file with line numbers and file info.

Drop a text file here or click to browse

.txt, .log, .md, .csv, .json, .yaml, .env, source code, and more

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FAQ

What file types can I open?: Any plain-text file works: .txt, .log, .md, .csv, .json, .xml, .yaml, .env, source code files, and more. Binary files will display garbled output.
Is there a line limit?: The viewer displays up to 10,000 lines for performance. Larger files will show the first 10,000 lines with a notice.
Is my file uploaded to a server?: No. Everything is read locally in your browser using the FileReader API. Your file contents never leave your device.

Upload any plain-text file and view its content in a monospace display with line numbers. Shows file name, size, MIME type, and line count. Supports any text-based format: .txt, .log, .md, .csv, .json, .xml, .yaml, .env, and more. No server upload required.