Vietnamese Accent Removal Tool
Remove accents from Vietnamese text with ease. Perfect for creating URLs, file names, or any context requiring accent-free text.
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Enable all to build a clean slug
Vietnamese Accent Removal Tool - Free Online Text Converter
Need to strip Vietnamese accents to create SEO-friendly URLs, ASCII-safe file names, or normalize data for code? The Vietnamese Accent Removal Tool runs entirely in your browser using Unicode NFD normalization and delivers instant results as you type — no button required. Beyond removing accents, it can lowercase text, replace spaces with hyphens, and strip special characters, or enable the one-click URL slug preset to build clean slugs. You can paste from the clipboard, upload a .txt file, or load the example text to get started right away.
How to Use
Type directly, click Paste to pull content from your clipboard, upload a .txt file, or click Try Example to start instantly with sample Vietnamese text.
Accent-free text appears automatically in the right panel as you type. The 'accents removed' badge shows exactly how many tone and diacritical marks were stripped.
Toggle Lowercase, Spaces → hyphens, or Letters & numbers only as needed. Hit the URL slug button to enable all three at once and build a clean website slug.
Click Copy (with confirmation feedback) to copy the result to your clipboard, or click Download to save it as a .txt file to your device.
Key Features
Results appear the moment you type or paste — no button required. The optimized algorithm processes documents thousands of words long instantly.
The URL slug button enables lowercase, spaces-to-hyphens, and special-character stripping at once — turning 'Việt Nam' into a clean, SEO-ready 'viet-nam'.
Optionally convert the entire text to lowercase — ideal for slugs, variable names, data keys, and other case-sensitive contexts.
Replace spaces with hyphens and collapse repeated hyphens, while preserving line breaks so multi-line text stays intact.
Strip punctuation and special characters, keeping only letters, numbers, hyphens, and underscores — safe for file names and URLs.
See exactly how many tone marks, diacritics, and đ/Đ characters were converted, alongside character, word, and line counts for both input and output.
Click Paste to grab clipboard content or upload a .txt file directly. A Try Example button lets you get started in a single click.
All processing happens locally in your browser. Not a single byte ever leaves your device — completely safe for sensitive text and works offline.
Practical Applications
Generate SEO-friendly URL slugs from Vietnamese headlines, optimize permalinks for WordPress, Shopify, and Wix, and normalize anchor text and breadcrumbs.
Create variable, function, ID, and slug names free of special characters. Normalize keys in JSON, YAML, and XML, and prepare payloads for REST and GraphQL APIs.
Rename images, videos, and documents to ASCII-safe names, avoid cross-platform issues, and create accent-free tags and categories for CMS platforms.
Bridge data into systems that lack Unicode support, convert TELEX or VNI text to plain ASCII, and prepare data for Elasticsearch and Solr search engines.
Clean import/export data from CSV and Excel, standardize column formats, and prepare clean datasets for analysis and machine learning.
Build accent-free identifiers for articles, products, and events, and normalize content before publishing to platforms that require ASCII text.
Frequently Asked Questions
Does the tool support all Vietnamese characters?
Yes. The tool uses Unicode NFD Normalization to accurately process 100% of Vietnamese characters, including compound vowels (ă, â, ê, ô, ơ, ư), all six tones (acute, grave, hook, tilde, dot below), and the special character đ/Đ.
How does the URL slug button work?
When you click URL slug, the tool enables three options at once: lowercase, spaces-to-hyphens, and letters & numbers only. For example, 'Thành phố Hồ Chí Minh' becomes 'thanh-pho-ho-chi-minh' — ready to use as an SEO-friendly URL path.
Can I customize the output?
Absolutely. The three options (Lowercase, Spaces → hyphens, Letters & numbers only) can be toggled independently and combined freely. The output updates instantly so you can preview every combination.
Can I paste or upload a text file?
Yes. You can click Paste to pull content from your clipboard, or Upload File to load a .txt file directly. There is also a Try Example button that fills in sample text for a quick test.
Is my data sent to any server?
Absolutely not. All processing happens locally in your browser (client-side). Not a single byte of your data ever leaves your device, keeping sensitive text safe — and it even works offline.
Is there a text length limit?
No. You can paste entire documents thousands of words long and still get instant results, thanks to the highly optimized algorithm running directly in your browser.
The Vietnamese Accent Removal Tool goes beyond stripping tone marks — it offers full transform options including lowercase, spaces-to-hyphens, special-character filtering, and a one-click URL slug preset. Combined with real-time conversion, paste & upload, an accents-removed counter, and instant copy, it's completely free, 100% private, and runs right in your browser.