HavenTools vs TestBench.tools
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
HavenTools compared with TestBench.tools
| Detail | 
HavenTools | 
TestBench.tools |
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| What it does | Free, privacy-first browser-based developer and utility tools that run entirely locally
| Free micro-tools for test & measurement, embedded and industrial automation engineers
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| Stage | Not given
| Not given
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| Founded | Not given
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| Based in | Not given
| Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
| Not given
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| Key features | - JSON formatting, validation, and conversion tools
- PDF merge, split, extract, rotate, and inspect
- Image compression, resize, convert, crop, and watermark
- CSS generators for gradients, shadows, grids, flexbox, and transforms
- Time and date calculation tools
- Client-side data processing with no server uploads
- Text conversion and manipulation tools
- File conversion and manipulation
| - 58 protocol and calculation tools
- 100% client-side execution with no data logging
- MCP server integration for Claude Code
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| What makes it different | - Privacy first by design: all data processing runs entirely in your browser
- Lightning-fast performance with no server round-trips
- No signup, no ads, no paywalls required
- Open-source suite
- Comprehensive collection with 100+ tools covering JSON, PDF, images, CSS, text, and more
| - All calculations run entirely in your browser with no data transmission or storage
- No sign-up, no configuration required; instant results with worked examples
- Calculations verified against published standards and golden test vectors
- Available as an MCP server for use in Claude Code and other AI assistants
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| Free plan | Not given
| Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 4 | 0 |
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| Citation Flow (Majestic) | 17 | 14 |
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| Referring domains (Majestic) | 5 | 2 |
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4 details filled in for both companies.
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