Open & Save
Open a local TXT file via the file picker or drag-and-drop, then export it as UTF-8 - with an optional BOM for older Windows apps - in one click.
Free · No signup · Local processing
Online TXT Editor - Open, Edit, Format & Download Text Files
The itotii Online TXT Editor is a free plain-text editor that runs entirely in your browser: open TXT and other text files, find & replace, change case, sort and deduplicate lines, then download the result - with no installation, no account, and no upload. All processing happens locally on your device.
Drop your file to open it
Key Features
From opening a file to exporting it - everything a plain-text workflow needs, on a single page.
Find & Replace
Switch between plain text and regular-expression modes, match case, replace one occurrence or all, and see the live match count.
Live Statistics
Characters (with and without spaces), words, lines, paragraphs and file size update in real time as you type.
Line Tools
Remove empty or duplicate lines, sort lines A-Z or Z-A, reverse order, and add or strip line numbers - perfect for lists and logs.
Case & Width
Convert the whole text to UPPERCASE or lowercase, capitalize words or sentences, and switch between half-width and full-width characters.
Privacy & Drafts
Everything is processed locally in your browser and never uploaded. Your draft is auto-saved locally, so accidental tab closes are recoverable.
Key Facts
The essential facts about the itotii online TXT editor at a glance.
Price
100% free
Signup
Not required
Privacy
Local processing, no upload
Interface
EN / ZH / JA / KO
Encoding
UTF-8 (BOM optional)
File types
TXT / LOG / MD / CSV and more
Access
Any modern browser
Drafts
Auto-saved locally
How It Works
Edit and save a TXT file online in three steps.
Open or paste text
Click "Open file" to pick a local TXT file (drag-and-drop works too), or simply paste text into the editor.
Edit & format
Use find & replace, sorting, deduplication and case tools; watch the live character and line counts in the status bar.
Download or copy
Hit "Download TXT" to save a UTF-8 file (BOM optional), or copy everything to the clipboard in one click.
How It Compares
The itotii online TXT editor versus Notepad, TextEdit and online document suites.
| Capability | itotii TXT Editor | System Notepad | Online Docs |
|---|---|---|---|
| No install, works in the browser | Yes | No | Yes |
| Text never uploaded | Yes | Yes | No |
| No account needed | Yes | Yes | No |
| Regex find & replace | Yes | No | partial |
| Sort / dedupe / clean lines | Yes | No | No |
| Multilingual UI (EN/ZH/JA/KO) | Yes | No | partial |
What Is the itotii Online TXT Editor?
The itotii Online TXT Editor is a free browser-based plain-text editor used to open, create, edit, format and download .txt and other text files. Every operation runs locally inside your browser - your text is never uploaded to a server - which makes it a good fit for logs, code snippets, checklists and drafts that contain private information. There is nothing to install and no account to create; just open the page and start typing. The interface automatically adapts to English, Chinese, Japanese and Korean.
Beyond basic typing, the editor ships with find & replace (including regular expressions), case conversion, line sorting and deduplication, empty-line cleanup, line numbering and full-width/half-width conversion, plus live statistics for characters, words, lines and file size. Your work is auto-saved as a local browser draft so an accidental tab close does not mean lost work.
itotii is an independent project brand focused on practical web tools and content services. Its family of sites includes an online toolbox (tool.itotii.com), a watermark tool (mark.itotii.com), a web directory (hao.itotii.com) and a Bing wallpaper gallery (bing.itotii.com). This editor extends the itotii toolbox to plain-text editing.
Page content last updated in September 2026 and maintained by the itotii team.
Frequently Asked Questions
The most common questions about this free online TXT editor.
Is this online TXT editor free? Do I need to sign up?
It is completely free with no signup or login required. Open the page and use every feature - no usage limits, no hidden fees.
Is my text uploaded to a server?
No. All processing happens locally in your browser. Your text is never uploaded, stored or analyzed, which makes the editor suitable for private or sensitive content.
Which file formats are supported?
Any plain-text format: .txt, .log, .md, .csv, .json, .xml, .html and more. Files are read as UTF-8; binary files such as images or archives will not display correctly.
How large a TXT file can I edit?
Text files up to a few megabytes typically edit smoothly. Because everything runs in browser memory, very large files (hundreds of MB of logs) are better handled by dedicated desktop tools.
I closed the tab by accident - can I recover my text?
Yes. The editor auto-saves a local draft in your browser's localStorage. Reopen this page in the same browser to restore your last session.
How do I export a UTF-8 file with BOM?
Click "Download (BOM)". A BOM helps older Windows programs such as Notepad and Excel detect UTF-8 correctly, avoiding garbled characters in non-ASCII text.