---
title: "Developer Toolkit by Zase: JSON, JWT, Regex & More – Chrome extension stats, history and permissions"
description: "11 users, rated 5.00 by 2 people. Version 1.0.5, updated 2026-11-05. Requests 6 permissions."
url: "https://extensiontracker.com/extension/fhjlhcecanniahjgnjffdhmfkfikkkdg"
---

# Developer Toolkit by Zase: JSON, JWT, Regex & More

Live in the Chrome Web Store.

- Users: 11
- Rating: 5.00 from 2 ratings
- Last checked: 2026-11-05 05:41 UTC
- Users gained in 7 days: +4
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #150,436 of 289,025 live extensions
- Rank in Developer Tools: #15,652 of 30,166

## The listing

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

Summary from the listing:

> Developer tools that run entirely in your browser. Free, fully offline and private: nothing you paste ever leaves your device.

- Extension ID: `fhjlhcecanniahjgnjffdhmfkfikkkdg`
- Developer: [Zase](https://extensiontracker.com/developer/ub2816776ddadcccf2ea7ba3a6318a334)
- Enhanced Safe Browsing: Not trusted ([what this means](https://extensiontracker.com/enhanced-safe-browsing))
- Category: [Productivity › Developer Tools](https://extensiontracker.com/category/productivity/developer)
- First published: 2026-10-03
- Last updated: 2026-11-05
- Version: `1.0.5`
- Size: 333 KiB
- Minimum Chrome: 88
- Languages (1): English
- Website: `https://devtoolkit-zase.pages.dev/`
- Support page: `https://devtoolkit-zase.pages.dev/contact`
- Chrome Web Store: <https://chromewebstore.google.com/detail/developer-toolkit-by-zase/fhjlhcecanniahjgnjffdhmfkfikkkdg>
- View its code or download CRX: <https://crxpeek.com/extension/fhjlhcecanniahjgnjffdhmfkfikkkdg>
- Search Google for the ID: <https://www.google.com/search?q=%22fhjlhcecanniahjgnjffdhmfkfikkkdg%22&tbs=li:1>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-11-05 | 11 | 5.00 | 2 |
| 2026-11-03 | 10 | 5.00 | 2 |
| 2026-11-02 | 10 | 5.00 | 2 |
| 2026-10-29 | 7 | 5.00 | 2 |
| 2026-10-28 | 6 | 5.00 | 2 |
| 2026-10-10 | 5 | 5.00 | 2 |
| 2026-10-04 | – | – | – |

## What changed

Every change found on a check, newest first.

- 2026-11-05: New version `1.0.5`, replacing `1.0.4`.
- 2026-11-05: The summary on the listing changed.
- 2026-11-05: The developer's website link changed.
- 2026-11-03: New version `1.0.4`, replacing `1.0.3`.
- 2026-11-02: New version `1.0.3`, replacing `1.0.2`.
- 2026-11-02: Renamed from “Developer Toolkit: JSON, JWT, Regex & More” to “Developer Toolkit by Zase: JSON, JWT, Regex & More”.
- 2026-11-02: Added the permissions `activeTab`, `scripting`.
- 2026-11-02: The developer's display name changed from “HS TECH SOL” to “Zase”.
- 2026-11-02: The developer's contact email changed.
- 2026-11-02: The privacy policy link changed.
- 2026-10-29: New version `1.0.2`, replacing `1.0.1`.
- 2026-10-28: New version `1.0.1`, replacing `1.0.0`.
- 2026-10-28: The summary on the listing changed.
- 2026-10-28: Added the permissions `contextMenus`, `sidePanel`.
- 2026-10-10: The developer's display name changed from “Hamza Craft” to “HS TECH SOL”.
- 2026-10-10: The developer's contact email changed.

## Developer history

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

- 2026-11-02: The contact email changed. The developer's display name changed from “HS TECH SOL” to “Zase”. The privacy policy link changed. What it can access changed the same day.
- 2026-10-10: The contact email changed. The developer's display name changed from “Hamza Craft” to “HS TECH SOL”. What it can access changed on 28 Oct 2026.

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
- `contextMenus`: Add items to the right-click menu
- `scripting`: Run scripts on sites it can reach
- `sidePanel`: Show a side panel
- `storage`: Save settings and data in your browser
- `system.display`: Read your screen setup

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 2026-11-05 05:41 UTC; next check around 2026-12-05.

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

## Cite this page

Extension Tracker. “Developer Toolkit by Zase: JSON, JWT, Regex & More” (fhjlhcecanniahjgnjffdhmfkfikkkdg). Chrome Web Store data, last checked 2026-11-05. https://extensiontracker.com/extension/fhjlhcecanniahjgnjffdhmfkfikkkdg. Accessed 2026-11-08.

```bibtex
@misc{extensiontracker_fhjlhcecanniahjgnjffdhmfkfikkkdg,
  title   = {Developer Toolkit by Zase: JSON, JWT, Regex & More (fhjlhcecanniahjgnjffdhmfkfikkkdg)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-11-05},
  url     = {https://extensiontracker.com/extension/fhjlhcecanniahjgnjffdhmfkfikkkdg},
  urldate = {2026-11-08}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/fhjlhcecanniahjgnjffdhmfkfikkkdg>. 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`.