Plain Text (.TXT)
TXT (Plain Text) is the simplest document format, containing only unformatted text characters with no styling, images, or metadata. It uses standard character encodings like ASCII or UTF-8 and can be opened by any text editor on any platform. Plain text files are the most universal and long-lived document format in computing.
Advantages of Plain Text
What the TXT format does well, and why you might choose it.
- Universal compatibility with every text editor and operating system ever created
- Extremely small file sizes with no overhead
- Human-readable and future-proof with no risk of format obsolescence
Limitations of Plain Text
What the TXTformat doesn't do well, and when to choose another format.
- No support for any text formatting, images, or layout
- No metadata, hyperlinks, or structural elements
- Character encoding differences can cause display issues across platforms
What TXT files are used for
- Configuration files, scripts, and source code
- README files and simple documentation
- Data interchange and log files
How TXT files work
Document formats split along one fundamental line: layout-fixed (PDF, PostScript, image-based scans) versus flow-based (DOCX, ODT, RTF, HTML, Markdown). Layout-fixed formats freeze a document on a specific page size with specific fonts in specific positions; flow-based formats describe content semantically and let the renderer decide how to lay it out for the current page or screen size. Modern document formats are nearly always XML-based zip archives at the file-system level (DOCX, ODT, EPUB, PPTX) — you can rename them to .zip and inspect their contents.
Best practices when working with TXT
Author in flow-based formats whenever the document might need editing later — DOCX, Markdown, ODT, plain text. Convert to PDF only at the delivery step. PDF is final-form: it's painful to edit, and round-tripping through PDF and back to DOCX always loses fidelity. Embed fonts in PDFs you're sharing externally so the recipient sees what you designed. For accessibility, tag PDFs with proper structure (headings, alt text, reading order) — a flat PDF is unreadable to screen readers. PDF/A is the long-term archival flavor of PDF; use it for legal and government compliance.
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Choosing TXT versus the alternatives
PDF: final-form delivery to readers, printers, and clients. The right answer when you don't want anyone editing your document. DOCX: editing and collaboration in Microsoft's ecosystem; dominant in business and academia. ODT: the open-standard equivalent of DOCX, native to LibreOffice. RTF: aging interchange format, surprisingly useful when you need editable text without the DOCX baggage. Markdown: writing for the web, technical documentation, and anywhere plain text plus light formatting is enough. HTML: web pages and email; a useful interchange when the destination is a browser or web rendering engine.
Where TXT fits in real workflows
Document workflows have an editable source (DOCX, Markdown, Google Docs, Pages) that's the master, plus a delivered PDF that goes to readers. Always keep the editable source even after sending the PDF — eventually you'll want to revise, and editing the PDF directly is dramatically harder than editing the original.
Privacy and file handling
When you convert a TXTfile with MegaConvert, the file is uploaded to our converter, processed, and automatically deleted within an hour. We don't train models on your files, share them with third parties, or retain them after the conversion completes. The download link expires when the file is removed. If your work involves files subject to NDA or compliance requirements (HIPAA, GDPR data processing), please review our privacy policy before uploading sensitive material.
Frequently asked questions about TXT
What is a .TXT file?
TXT (Plain Text) is the simplest document format, containing only unformatted text characters with no styling, images, or metadata. It uses standard character encodings like ASCII or UTF-8 and can be opened by any text editor on any platform. Plain text files are the most universal and long-lived document format in computing.
What is the MIME type of TXT?
The official MIME type for TXT files is text/plain. This is the value web servers and applications use to identify the format when transferring files.
What category does TXT belong to?
TXT is a Document Converter format. Files in this category share common conversion paths and use cases.
How do I open a .TXT file?
TXT files are typically opened by software that natively supports the Plain Textformat. If you don't have a compatible application, the most reliable approach is to convert the file to a more universal format using the converters listed above. Most Plain Text files convert to widely-supported alternatives in seconds.
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