---
title: "Flex Message Simulator Companion – Chrome extension stats, history and permissions"
description: "11 users, no ratings yet. Version 1.0.1.0, updated 2026-08-17. Requests 5 permissions."
url: "https://extensiontracker.com/extension/fpekmmmllioofehpkddnjdbbbendbhga"
---

# Flex Message Simulator Companion

Live in the Chrome Web Store.

- Users: 11
- Rating: no ratings yet
- Last checked: 2026-10-14 10:47 UTC
- Users gained in 7 days: No change
- Users gained in 30 days: No change (+0.0%)
- Rank by users: #152,296 of 292,131 live extensions
- Rank in Developer Tools: #15,858 of 30,442

## The listing

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

Summary from the listing:

> Auto-load, fetch remote JSON, and inject LINE Flex Message payloads into the LINE Flex Message Simulator.

- Extension ID: `fpekmmmllioofehpkddnjdbbbendbhga`
- Developer: [iamPrompt](https://extensiontracker.com/developer/u9589cd9bc20c80da2ff4cbf7beae81bc)
- 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: 2026-08-16
- Last updated: 2026-08-17
- Version: `1.0.1.0`
- Size: 103 KiB
- Minimum Chrome: 88
- Languages (1): English (United States)
- Chrome Web Store: <https://chromewebstore.google.com/detail/flex-message-simulator-co/fpekmmmllioofehpkddnjdbbbendbhga>
- View its code or download CRX: <https://crxpeek.com/extension/fpekmmmllioofehpkddnjdbbbendbhga>
- Search Google for the ID: <https://www.google.com/search?q=%22fpekmmmllioofehpkddnjdbbbendbhga%22&tbs=li:1>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-10-14 | 11 | – | – |
| 2026-09-27 | 4 | – | – |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-27.

## 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 2026-09-27.

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.

**Every website:** it can read and change your data on all the sites you visit.

### Sites

- `<all_urls>`: Every website
- `https://developers.line.biz/*`: developers.line.biz

### Sites where it runs scripts

- `<all_urls>`: Every website
- `https://developers.line.biz/*`: developers.line.biz

### Browser features

- `activeTab`: The tab you're on, only after you click the extension
- `scripting`: Run scripts on sites it can reach
- `storage`: Save settings and data in your browser

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [Enhanced Disney+ Hotstar](https://extensiontracker.com/extension/ggonogpephoeedoopcdnhnfdlaoeiben) | 40,000 | 4.77 | 60 | Just for Fun |
| [Colorize - เพิ่มสีสันให้เว็บไซต์](https://extensiontracker.com/extension/odojnecmoajckdoflgmoeeoabhgbjhhj) | 14 | – | – | Accessibility |

All 3 extensions by [iamPrompt](https://extensiontracker.com/developer/u9589cd9bc20c80da2ff4cbf7beae81bc).

## 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 2026-10-14 10:47 UTC; next check around 2026-11-14.

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

## Cite this page

Extension Tracker. “Flex Message Simulator Companion” (fpekmmmllioofehpkddnjdbbbendbhga). Chrome Web Store data, last checked 2026-10-14. https://extensiontracker.com/extension/fpekmmmllioofehpkddnjdbbbendbhga. Accessed 2026-11-13.

```bibtex
@misc{extensiontracker_fpekmmmllioofehpkddnjdbbbendbhga,
  title   = {Flex Message Simulator Companion (fpekmmmllioofehpkddnjdbbbendbhga)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-10-14},
  url     = {https://extensiontracker.com/extension/fpekmmmllioofehpkddnjdbbbendbhga},
  urldate = {2026-11-13}
}
```

---

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