I Built a Free Privacy-First Text Toolkit That Runs Entirely in Your Browser
After using dozens of online text utilities over the years, I noticed the same recurring problems:
- Too many ads and popups
- Slow interfaces
- Forced sign-ups
- Text being uploaded to remote servers
- Poor mobile experience
I wanted something different.
So I built TextCaret.
The idea
The goal was simple:
Build a collection of text tools that are:
- Fast
- Free
- Privacy-first
- Mobile friendly
- Easy to use
Most importantly, everything runs locally in your browser.
Your text never leaves your device.
Current features
TextCaret currently includes tools like:
- Word Counter
- Character Counter
- Reading Time Calculator
- Case Converter
- Remove Duplicate Lines
- Remove Empty Lines
- Find & Replace
- Reverse Text
- Base64 Encode/Decode
- URL Encode/Decode
- JSON Formatter
- Slug Generator
- Unicode Text Generator
More tools are being added continuously.
Technical approach
The project is intentionally lightweight.
- Vanilla JavaScript
- HTML
- CSS
- No backend required for the tools
- Instant processing
- Responsive interface
- SEO-friendly pages
- Structured data (Schema.org)
Because everything happens client-side, the website is extremely fast and no user text is stored.
Why privacy matters
Many online tools ask users to paste confidential content.
That may include:
- Contracts
- Source code
- Emails
- Reports
- Internal documentation
With TextCaret, the text stays inside your browser.
No uploads.
No accounts.
No tracking of your content.
What's next
I'm currently working on:
- More text utilities
- Better accessibility
- More language support
- Improved SEO resources
- Additional developer tools
I'd love your feedback
If you have ideas for new text utilities or improvements, let me know.
Website:
Feedback is always welcome.
Top comments (1)
This resonates a lot — I built a similar browser-only text toolkit and ran into the exact same recurring complaints: ad-heavy pages, forced signups, and the quiet worry that pasted text goes to some server. Your list of 'scary' inputs (contracts, source code, internal docs) matches what I hear from users too — for those, privacy isn't a feature, it's the whole reason they'd choose a local tool. One thing I found: stating 'runs 100% in your browser, nothing uploaded' right above the workspace does more for trust than an About page ever did. Vanilla JS with no backend also keeps the attack surface tiny, which is a selling point worth saying out loud. Curious whether you've considered reviews-style structured data to help the tool pages stand out in search results.