---
title: "DevSec Toolkit - JWT, Headers & JSON Tools – Chrome extension stats, history and permissions"
description: "No user count, no ratings yet. Version 1.0.0, updated 2026-10-19. Requests 5 permissions."
url: "https://extensiontracker.com/extension/hgphjgnadgipjnbbjkhihaabhppooljk"
---

# DevSec Toolkit - JWT, Headers & JSON Tools

Live in the Chrome Web Store.

- Users: the store shows no user count
- Rating: no ratings yet
- Last checked: 2026-10-26 03:53 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)

## The listing

What the Chrome Web Store shows, as of the last check.

Summary from the listing:

> Free JWT decoder, security headers checker, secret scanner, JSON formatter, Base64 & hash tools. Runs 100% locally.

- Extension ID: `hgphjgnadgipjnbbjkhihaabhppooljk`
- Developer: [HackerOnStreet](https://extensiontracker.com/developer/ubc047b182a91f72696472967bc1eb4f8)
- Enhanced Safe Browsing: Trusted ([what this means](https://extensiontracker.com/enhanced-safe-browsing))
- Category: [Productivity › Developer Tools](https://extensiontracker.com/category/productivity/developer)
- First published: 2026-10-19
- Last updated: 2026-10-19
- Version: `1.0.0`
- Size: 59.21 KiB
- Minimum Chrome: 116
- Languages (1): English
- Website: `hackeronstreet.com`
- Chrome Web Store: <https://chromewebstore.google.com/detail/devsec-toolkit-jwt-header/hgphjgnadgipjnbbjkhihaabhppooljk>
- View its code or download CRX: <https://crxpeek.com/extension/hgphjgnadgipjnbbjkhihaabhppooljk>
- Search Google for the ID: <https://www.google.com/search?q=%22hgphjgnadgipjnbbjkhihaabhppooljk%22&tbs=li:1>

## Users over time

One row per check, newest first, as shown on the Chrome Web Store.

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-10-26 | – | – | – |
| 2026-10-20 | – | – | – |

## What changed

Every change found on a check, newest first.

- 2026-10-24: Now trusted by Enhanced Safe Browsing.

## Developer history

Moves to another publisher account and new contact emails, newest first.

No move to another account and no new contact email since tracking began on 2026-10-20.

We know contact emails only by a keyed hash, so they're never shown. Recent changes: [Account and contact changes](https://extensiontracker.com/owners/).

## What it can access

From the extension's manifest, in plain language.

### Browser features

- `activeTab`: The tab you're on, only after you click the extension
- `scripting`: Run scripts on sites it can reach
- `sidePanel`: Show a side panel
- `storage`: Save settings and data in your browser
- `tabs`: Read the addresses and titles of your tabs

### Asked for later, if you agree

- `cookies`: Read and change cookies on the sites it can reach
- `proxy`: Send your traffic through a proxy
- `webRequest`: Watch network requests on the sites it can reach
- `http://*/*`: Every website
- `https://*/*`: Every website

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [Twilio Messages Console](https://extensiontracker.com/extension/nmcnkeaklofgjknjdfknkndjgfeecmam) | 4 | – | – | Communication |
| [Shaday Notes Pro](https://extensiontracker.com/extension/ceffeipideejnopmaafadjdhhcgfokpf) | 1 | – | – | Workflow & Planning |

All 3 extensions by [HackerOnStreet](https://extensiontracker.com/developer/ubc047b182a91f72696472967bc1eb4f8).

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked again 7 and 30 days after it was published, and again whenever a new version appears. Last checked 2026-10-26 03:53 UTC; next check around 2026-11-18.

How the data is collected: <https://extensiontracker.com/methodology>.

## Cite this page

Extension Tracker. “DevSec Toolkit - JWT, Headers & JSON Tools” (hgphjgnadgipjnbbjkhihaabhppooljk). Chrome Web Store data, last checked 2026-10-26. https://extensiontracker.com/extension/hgphjgnadgipjnbbjkhihaabhppooljk. Accessed 2026-11-08.

```bibtex
@misc{extensiontracker_hgphjgnadgipjnbbjkhihaabhppooljk,
  title   = {DevSec Toolkit - JWT, Headers & JSON Tools (hgphjgnadgipjnbbjkhihaabhppooljk)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-10-26},
  url     = {https://extensiontracker.com/extension/hgphjgnadgipjnbbjkhihaabhppooljk},
  urldate = {2026-11-08}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/hgphjgnadgipjnbbjkhihaabhppooljk>. It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (<https://creativecommons.org/licenses/by/4.0/>), crediting Extension Tracker. Every page except search comes as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.