Who is Open Regex101 for?

Open Regex101 is a consumer product built for developers using IntelliJ-based IDEs.

Is Open Regex101 free?

Yes — Open Regex101 is free to use.

What platforms does Open Regex101 run on?

Open Regex101 runs on the web, macOS, Windows, and Linux.

Is Open Regex101 still maintained?

Unverified. Open Regex101 has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to Open Regex101?

Similar projects tracked by PulseGate include Regex Tester, Regex Tool, and RegexPlugin.

Who develops Open Regex101?

Open Regex101 is developed by JetBrains Marketplace.

How long has Open Regex101 been around?

Open Regex101 first shipped in 2020.

Back to the index

Open Regex101

Name: Open Regex101
Author: JetBrains Marketplace

jetbrains.comBrowser DevTools & extensions

Open Regex101 is a plugin for IntelliJ-based IDEs that provides an in-editor environment for testing and working with regular expressions. It is intended for developers who want to validate regex patterns without switching to a separate web tool.

FreeWebmacOSWindowsLinux

Visit jetbrains.com

Overview

4 features

Open Regex101 is a Browser DevTools & extensions project. It focuses on testing and debugging regular expressions without leaving an IntelliJ-based IDE. It is built as a consumer product for developers using IntelliJ-based IDEs. Open Regex101 is free to use. It ships for the web, macOS, Windows, and Linux.

Behind Open Regex101 is JetBrains Marketplace, and it first shipped in 2020. Key capabilities include regex testing, pattern editing, and match inspection.

Summary written by a language model from the project’s public pages.

Regex testing
Pattern editing
Match inspection
IntelliJ integration

Built with & integrations

Hosting

AWS

Runs on

BrowsermacOSWindowsLinux

Detected from

AWS: x-amz-cf-id header · x-amz-cf-pop header · via header

Trust & compliance

Verified signals

HTTPSFree tier

Indexing history

What PulseGate has recorded for this listing

Indexed8 Sept · 22:23 UTC
Open Regex101 verified via JetBrains Plugins
Source: JetBrains Plugins · Open

Frequently asked questions about Open Regex101

What is Open Regex101?: Open Regex101 focuses on testing and debugging regular expressions without leaving an IntelliJ-based IDE. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Open Regex101 for?: Open Regex101 is a consumer product built for developers using IntelliJ-based IDEs.
Is Open Regex101 free?: Yes — Open Regex101 is free to use.
What platforms does Open Regex101 run on?: Open Regex101 runs on the web, macOS, Windows, and Linux.
Is Open Regex101 still maintained?: Unverified. Open Regex101 has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to Open Regex101?: Similar projects tracked by PulseGate include Regex Tester, Regex Tool, and RegexPlugin.Regex Tester Regex Tool RegexPlugin
Who develops Open Regex101?: Open Regex101 is developed by JetBrains Marketplace.
How long has Open Regex101 been around?: Open Regex101 first shipped in 2020.

At a glance

Platforms: Web
Languages: English
First seen: 8 Sept 2026
Built for: developers using IntelliJ-based IDEs
Model: B2C
Solves: Testing and debugging regular expressions without leaving an IntelliJ-based IDE.

Registered as

JetBrains Marketplace: 14461

Developer

JetBrains Marketplace

Index record

Indexed: 8 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 8 Sept 2026

Identity audit (13)

Slug: open-regex101-jetbrains-com
Lifecycle state recorded: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 8 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model from page content.
Last updated: 8 Sept 2026
Canonical URL: https://plugins.jetbrains.com/plugin/14461-open-regex101

Ship this? Send a correction — no account, and you get a link to follow it.

Similar projects

Closest matches by what these projects do