---
url: "https://launchzone.co/p/username-dev"
markdown: "https://launchzone.co/p/username-dev.md"
website: "https://username.dev/"
tier: "free"
status: "launched"
upvotes: "0"
launched: "2026-07-13"
categories: "API, Drag and Drop, Link in Bio, Developer Tools, API-First"
tags: "Drag and Drop, Link in Bio, Developer Tools, API, API-First"
pricing: "free"
pricing_label: "Free — no paid plan required"
created: "2026-07-18"
---

# username.dev

> Prevent abusive usernames, protect brands, and support premium handles in one API.

## About username.dev

## What is username.dev?

username.dev is an API for developers and product teams who need to validate usernames before they enter a database. It focuses on three problems that come up whenever a signup form asks someone to pick a handle: abusive or offensive names, brand impersonation, and premium or reserved handles.
What username.dev does
Checks submitted usernames for abusive or offensive content before account creation
Flags names that could be used to impersonate existing brands
Identifies premium or reserved handles so they can be treated differently in a signup flow
Exposes this checking logic through a single API that can be called during registration
Who it's for
username.dev is built for developers and teams building products with user accounts, such as social apps, marketplaces, communities, and any platform where users choose their own public-facing name. Teams use it to keep offensive or brand-infringing usernames out of their systems and to manage which handles count as premium.
For a maker setting up a signup flow, username.dev fits in as a validation step called at account creation, alongside existing checks like email or password rules, so username quality and brand protection are handled through one API call rather than custom moderation logic built in-house.
}

## Who is it for?

username.dev is built for teams and individuals working with Drag and Drop, Link in Bio, Developer Tools, API, API-First. It fits into the API category on LaunchZone.

## How is it priced?

username.dev is free to use. Visit the website for the latest plan details.

## How does it compare to alternatives?

username.dev sits in the API category on LaunchZone. Buyers should compare features, pricing, and integration fit against nearby alternatives before choosing a tool.

## Key features

- Checks submitted usernames for abusive or offensive content before account creation
- Flags names that could be used to impersonate existing brands
- Identifies premium or reserved handles so they can be treated differently in a signup flow
- Exposes this checking logic through a single API that can be called during registration

## Overview

### Who is it for?

username.dev is built for teams and individuals working with Drag and Drop, Link in Bio, Developer Tools, API, API-First. It fits into the API category on LaunchZone.

### What is it?

username.dev is an API for developers and product teams who need to validate usernames before they enter a database. It focuses on three problems that come up whenever a signup form asks someone to pick a handle: abusive or offensive names, brand impersonation, and premium or reserved handles.
What username.dev does
Checks submitted usernames for abusive or offensive content before account creation
Flags names that could be used to impersonate existing brands
Identifies premium or reserved…

### How is it priced?

username.dev is free to use. Visit the website for the latest plan details.

### How does it compare?

username.dev sits in the API category on LaunchZone. Buyers should compare features, pricing, and integration fit against nearby alternatives before choosing a tool.

## Categories

- API
- Drag and Drop
- Link in Bio
- Developer Tools
- API-First

## Frequently asked questions

**Q: What is username.dev?**

username.dev is an API for developers and product teams who need to validate usernames before they enter a database. It focuses on three problems that come up whenever a signup form asks someone to pick a handle: abusive or offensive names, brand impersonation, and premium or reserved handles.
What username.dev does
Checks submitted usernames for abusive or offensive content before account creation
Flags names that could be used to impersonate existing brands
Identifies premium or reserved handles so they can be treated differently in a signup flow
Exposes this checking logic through a single API that can be called during registration
Who it's for
username.dev is built for developers and teams building products with user accounts, such as social apps, marketplaces, communities, and any platform where users choose their own public-facing name. Teams use it to keep offensive or brand-infringing usernames out of their systems and to manage which handles count as premium.
For a maker setting up a signup flow, username.dev fits in as a validation step called at account creation, alongside existing checks like email or password rules, so username quality and brand protection are handled through one API call rather than custom moderation logic built in-house.
}

**Q: Who is username.dev for?**

username.dev is built for teams and individuals working with Drag and Drop, Link in Bio, Developer Tools, API, API-First. It fits into the API category on LaunchZone.

**Q: How is username.dev priced?**

username.dev is free to use. Visit the website for the latest plan details.

**Q: How does username.dev compare to alternatives?**

username.dev sits in the API category on LaunchZone. Buyers should compare features, pricing, and integration fit against nearby alternatives before choosing a tool.

## Screenshots

- Screenshot 1: https://cdn.launchzone.co/products/imports/34815a8a-ab71-4f25-b1be-c821deb4e366.webp

## Links

- Listing: https://launchzone.co/p/username-dev
- AI-friendly Markdown: https://launchzone.co/p/username-dev.md
- Website: https://username.dev/

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_HTML version: https://launchzone.co/p/username-dev_