String Utility Belt vs Isothrum
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
String Utility Belt compared with Isothrum
| Detail | 
String Utility Belt | 
Isothrum |
|---|
| What it does | Free online string and text tools for encoding, decoding, hashing, formatting and converting text in your browser
| A GNS3-style editor for containers, VMs, switches and routers that runs in your browser
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| Stage | Not given
| Not given
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| Founded | Not given
| 2022
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| Based in | Not given
| FR
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| Pricing model | Free
| Free
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| Pricing | Not given
| Not given
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| Key features | - Base64 encoding and decoding
- URL encoding and decoding
- JSON formatting, validation and minifying
- JWT decoding with readable timestamps
- SHA-256 and other cryptographic hashing
- UUID generation with multiple versions
- Text diffing with multiple formats
- Chainable pipelines with live preview
- CSV to JSON and JSON to YAML conversion
- Regular expression explanation in plain English
| - Visual lab editor with drag-and-drop interface for network devices
- Mix containers and VMs in the same lab
- Configure switches with VLANs and trunks
- Automatic or manual routing between networks
- Add network conditions like latency, jitter and packet loss
- Export to Docker Compose, Vagrant, Proxmox, Kubernetes and cloud platforms
- Import GNS3 projects and convert them to labs
- Real-time validation as you design
- Desktop app with consoles, VNC screens and packet capture
- Works offline and runs entirely in the browser
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| What makes it different | - All processing happens in your browser with no data uploaded to servers
- Chain multiple tools into pipelines with live preview of each step
- Available across VS Code, CLI, MCP and as a Node.js library
- No cookies or tracking scripts, privacy-focused
- 248 utilities organized by category with guides and worked examples
| - Runs in your browser with no installation or account required
- Exports to multiple environments from one lab design
- Private by design with no data leaving your browser
- Open isoloom.yml format that you own and can version control
- Can import and convert existing GNS3 projects
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| Free plan | Not given
| Not given
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| Open source | Not given
| Not given
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| Platforms | Not given
| 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) | 38 ▲ +1 (up) since last check | 2 ● no change since last check |
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| Trust Flow (Majestic) | 5 | 0 |
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| Citation Flow (Majestic) | 24 | 0 |
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| Referring domains (Majestic) | 18 | 0 |
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4 details filled in for both companies.
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