Fact sheet · Developer Tools
String Utility Belt
Free online string and text tools for encoding, decoding, hashing, formatting and converting text in your browser
A collection of 248 free text and string tools that run in your browser, including encoding, decoding, hashing, formatting and data conversion utilities that
Overview
String Utility Belt is a free collection of online text and string tools for encoding and decoding, hashing and checksumming, converting between data formats, working with text and lines, generating random values, and developer helpers like JWT decoding and regex explanations. Every transformation runs in your browser on your device, with nothing uploaded to servers. You can use each tool on its own page, or chain several tools into a pipeline to watch every step's output update as you type. The site includes worked examples, guides and a live playground for each utility.
Feature facts
- 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
Pricing
Pricing model: Free
Follow String Utility Belt: their milestones, new launches and awards come to you by email, once a day by default.
String Utility Belt specifications
| Section | Developer Tools |
|---|---|
| Website | stringutilitybelt.com |
| Votes2 | 0 |
String Utility Belt metrics
| Metric | Value |
|---|---|
| Domain Rating | 38 +1 (up) since last check |
| Trust Flow | 5 no change since last check |
| Citation Flow | 24 no change since last check |
| Referring domains | 18 no change since last check |
| External backlinks | 73 no change since last check |
Fact: Ahrefs Domain Rating checked 12 Nov 2026, fact changed 7 Nov 2026. Fact: top topic Arts/Performing Arts (5). Fact: Majestic checked 25 Oct 2026, fact changed 25 Oct 2026. Link facts from Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
String Utility Belt domain fact sheet
Open the fact sheet
| Domain age | 1 year |
|---|---|
| Registered | |
| Expires | |
| Registrar | Network Solutions, LLC |
| DNSSEC | Not signed |
String Utility Belt launch receipt sheet
What we have measured for String Utility Belt since it went live on SaaS Directory Info on 25 October 2026.
- 38 Domain Rating (Ahrefs) +1 (up) since launch
at launch: 37 (25 Oct 2026); latest: 11 Nov 2026 - 5 Trust Flow (Majestic)
first measured 25 Oct 2026 - 18 Referring domains (Majestic)
first measured 25 Oct 2026
Day 17 since launch. Next receipt: day 30, 24 Nov 2026. The figures report a change; they do not say what caused it, and many things can. No figure here is a guess.
Got a launch coming up?
Step-by-step tips for before, during and after your launch, free to read on SaaS Directory Info.
- Prepare
- Launch day
- Launch week
- Next steps
Compare and explore
Frequently looked up
- Q1Does String Utility Belt upload my data to a server?
- No. Every transformation runs in your browser on your device. Your input is never uploaded to be processed, except for two optional features: fetching a web address through the proxy and sending feedback through the contact form.
- Q2Can I use String Utility Belt tools outside the website?
- Yes. The same utilities are available in a VS Code extension, a command-line tool called subelt, an MCP server for AI agents, and a Node.js library.
- Q3What happens when I create a share link?
- Your pipeline and input are compressed into the part of the link after the #. Browsers do not send that part to the server, so the site never receives it. Anyone you share the link with can read its contents.
- Q4Does String Utility Belt use cookies or tracking scripts?
- No. The site sets no cookies and runs no tracking scripts. Page views are counted by Cloudflare Web Analytics without cookies or identifiers, and the server counts only clicks and editor usage by tool id without capturing your input.
- Q5How is String Utility Belt funded?
- String Utility Belt is free and has no paid tier. It accepts sponsorship on its own terms where sponsor messages are clearly labelled. You can also support development directly through GitHub Sponsors.
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String Utility Belt has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Demo video (locked)
- Dofollow website link (locked)
See also
| Product | Origin | DR1 | Votes2 |
|---|---|---|---|
| liquid-technologiesXML code generator for C# and Visual Basic .Net that creates strongly typed object models from XML schemas | United Kingdom | 70 | 0 votes. Log in to vote for liquid-technologies in the file |
 APIGitGit-native platform for building, publishing, sharing, and securing APIs | United States | 36 | 0 votes. Log in to vote for APIGit in the file |
 eryxWebAssembly sandbox for running untrusted Python safely | not stated | 0 | 0 votes. Log in to vote for eryx in the file |
 TestFlows MachineRun your programs deterministically. Record, replay, and branch your runs. | not stated | 2 | 0 votes. Log in to vote for TestFlows Machine in the file |