Online Text Tools

14 free online text tools for counting, converting, cleaning, symbols and analysis. Everything runs locally in your browser — nothing is uploaded or stored.

One toolbox for everyday text processing

Essays, publishing, name lists, SEO keyword analysis — everyday work is full of small text chores. 17NAS packs the most common ones into 14 free online tools: word counting, case conversion, dedup and replace, word frequency, typography fixes, special symbols and more. Open a page, use it, done.

Combine tools freely: check the length first, then the keyword distribution; clean a list with dedup plus sorting in one pass; power users can chain operations into a reusable pipeline with the Text Workflow tool.

Counting & Statistics

Word Count Tool Live counts of characters, English words, lines and paragraphs Use now → Word Frequency Counter Word frequency ranking with Chinese segmentation Use now →

Transform

Letter Case Converter Convert between 12 letter-case and naming styles Use now → Text Dedup Tool Remove duplicate lines or items with custom separators Use now → Batch Find & Replace Tool Batch find-and-replace with regex support Use now → Text Sort & Reverse Tool Sort, reverse and shuffle lines instantly Use now → Line Numbering Tool Add custom line numbers to every line Use now → Text to HTML Converter Turn plain text into HTML paragraphs, lists and tables Use now → Chinese-English Typography Fixer Auto-fix spacing and punctuation between Chinese and English Use now →

Symbols & Fonts

Special Symbols 1000+ special symbols, organized and copy-ready Use now → Emoji Collection Browse all emojis by category, searchable in Chinese Use now → Fancy Text Generator Instantly convert text into 26 fancy Unicode fonts Use now →

Analysis

Duplicate Content Checker Detect repeated sentences and lines, with a duplicate rate Use now →

Workflow

Text Processing Workflow Chain text operations into a reusable pipeline Use now →

Why 17NAS Text Tools

Private by design

Text and processing settings stay in your browser. We record only anonymous categories such as tool, action, language, device and referral type — never text, cookies, user IDs, IP addresses or fingerprints.

Free with no limits

No sign-up, no usage caps, no watermarks. Copy or download your results with one click.

Mobile friendly

Optimized for touch on phones and tablets. Open, process, copy — anywhere, anytime.

FAQ

Are these text tools free?

Yes, completely free. No sign-up, no usage limits, no watermarks. Results can be copied or downloaded directly.

Is my text uploaded to a server?

No. Text and processing settings stay in your browser. To understand which tools are useful, the page sends only anonymous category events with no text, identity, IP address or fingerprint; nothing is sent when Global Privacy Control or Do Not Track is enabled.

Do they work on mobile?

Yes. Every tool is optimized for mobile browsers, including in-app browsers, with one-tap copy for results.

Will more tools be added?

Yes. We will keep improving the current 14 tools and add new ones for common writing, data cleanup and content analysis needs. Bookmark this page; new tools will appear here.