Compare
Offsend Browser Extension vs OpenBlur
Short answer: Pick Offsend Browser Extension if you want local secret masking for AI chats; pick OpenBlur if you want on-the-fly webpage element blurring. Both are free.
Offsend Browser ExtensionMask secrets before they reach ChatGPT, Claude, or Gemini.
OpenBlurFree, Private, Blur!Which to pick
Pick Offsend Browser Extension if you want…
- Local secret masking for AI chats
- Masking data for AI interactions
- Open-source code (Offsend/browser-extension on GitHub, Apache-2.0 license)
Pick OpenBlur if you want…
- On-the-fly webpage element blurring
Side by side
- What it is
- Offsend Browser Extension:Offsend is a local-first browser extension that detects and masks secrets in prompts before they reach AI chat services.
- OpenBlur:OpenBlur is a Chrome extension that lets you blur or hide any webpage element for privacy or distraction-free viewing.
- Best for
- Offsend Browser Extension:Local secret masking for AI chats
- OpenBlur:On-the-fly webpage element blurring
- Who it’s for
- Offsend Browser Extension:Developers and teams who paste code, logs or data into AI chat tools.
- OpenBlur:Anyone who needs to conceal sensitive info or remove distractions while browsing, screen-sharing, or taking screenshots.
- Pricing
- Offsend Browser Extension:Free
- OpenBlur:Free
- Starting price
- Offsend Browser Extension:Free
- OpenBlur:Free
- Free plan or trial
- Offsend Browser Extension:Free to use
- OpenBlur:Free to use
- Open source
- Offsend Browser Extension:Yes, 1 GitHub stars
- OpenBlur:—
- Works with
- Offsend Browser Extension:ChatGPT, Claude, Gemini, Grok, Perplexity, DeepSeek
- OpenBlur:—
Offsend Browser Extension features
- Local detection. Scans prompts in the browser without sending data to any server.
- Automatic masking. Replaces detected secrets with readable placeholders like {{API_KEY_1}}.
- Restore capability. Keeps encrypted, time-limited mappings to restore original values locally.
- Custom rules. Add JavaScript regex patterns to detect organization-specific secrets.
- Mode selection. Choose Warn, Auto-mask, or Block behavior when secrets are found.
- Built-in detectors. Detect emails, phones, API keys, tokens, private keys, credit cards, IPs, UUIDs and more.
OpenBlur features
- Element blur/hide. Select and blur or hide any element on a webpage with a single click.
- Precise control. Choose exactly which parts of the page to conceal.
- In-browser only. Runs entirely in the browser without external servers.
- No data collection. Does not collect, store, or transmit personal data or browsing activity.
- Free for personal use. Available at no cost for non-commercial users.
- Commercial licensing. Commercial use allowed via Chrome Web Store install or a license grant.
Offsend Browser Extension vs OpenBlur FAQ
What is the difference between Offsend Browser Extension and OpenBlur?+
Offsend Browser Extension: Masks secrets before they reach AI services, focusing on AI-prompt privacy rather than general webpage blurring.
Should I use Offsend Browser Extension or OpenBlur?+
Pick Offsend Browser Extension if you want local secret masking for AI chats, masking data for AI interactions or open-source code (Offsend/browser-extension on GitHub, Apache-2.0 license). Pick OpenBlur if you want on-the-fly webpage element blurring.
Is Offsend Browser Extension or OpenBlur free?+
Yes, both are free.
Is Offsend Browser Extension or OpenBlur open source?+
Offsend Browser Extension is open source (Offsend/browser-extension on GitHub, Apache-2.0 license). DevHunt has no public source repository on record for OpenBlur.
On DevHunt
Offsend Browser Extension
11 upvotes · Launched on DevHunt on Jun 30, 2026
Based on each tool's website and DevHunt data. Details may change; check the official sites.