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What is PromptDC?

PromptDC is a cutting-edge extension that utilizes artificial intelligence to elevate the art of prompt engineering, effortlessly integrating with well-known web-based and local AI platforms such as Lovable, Bolt.new, Replit, V0, Cursor, and Windsurf, which empowers users to refine and organize their prompts for improved accuracy without needing to switch platforms. Once installed, users can input their initial instructions into any compatible text area and simply hit the “Enhance” button; PromptDC evaluates the foundational system prompt of the host platform, optimizes the phrasing to meet its specifications, and presents a clearer, more effective iteration that significantly improves the quality of the AI-generated results. Beyond offering immediate enhancements, this tool also creates a cohesive workspace for users to develop, manage, and experiment with a range of prompt templates tailored for various tasks like content creation, programming assistance, marketing strategies, and data analysis, while also providing expert insights to help users overcome creative challenges and refine their processes. Moreover, the unique blend of features not only boosts productivity but also inspires creativity within an intuitive environment, making it an indispensable asset for anyone looking to enhance their AI interactions.

What is LangFast?

LangFast is a lightweight yet powerful prompt testing platform tailored for product teams, prompt engineers, and developers working extensively with large language models (LLMs). Offering instant, no-signup access to a fully customizable prompt playground, it simplifies the creation and testing of prompt templates using Jinja2 syntax. Users can see real-time raw outputs directly from the LLM without any API abstractions, enabling precise control and immediate feedback. By eliminating manual testing friction, LangFast allows teams to validate prompts, iterate rapidly, and collaborate more effectively on prompt development projects. Created by a team with a proven track record of scaling AI SaaS platforms to over 15 million users, the platform emphasizes control and scalability. LangFast supports seamless sharing of prompt templates, making teamwork intuitive and efficient. Its simple pay-as-you-go pricing model ensures cost predictability and accessibility for teams of all sizes. The platform’s clean and lightweight design means it can be integrated easily into existing workflows without overhead. LangFast empowers teams to accelerate innovation in prompt engineering while managing expenses effectively. This makes it an ideal choice for organizations looking to enhance their AI-driven product development with flexible and transparent prompt testing.

Media

Media

No images available

Integrations Supported

Bolt.new
Cursor
Devin Desktop
GitHub
Lovable
Manus AI
Replit
Rosebud.ai
Softgen
TRAE
Tempo
Visual Studio Code
v0

Integrations Supported

API Availability

Has API

API Availability

Pricing Information

€6.99 per month
Free Version
Free Trial Offered?

Pricing Information

$60 one time
Free Trial Offered?

Supported Platforms

SaaS

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Not specified

Training Options

Documentation Hub

Training Options

Not specified

Company Facts

Organization Name

PromptDC

Company Location

United States

Company Website

promptdc.com

Company Facts

Organization Name

Langfa.st

Date Founded

2025

Company Location

United States

Company Website

langfa.st/new

Categories and Features

Prompt Engineering

Not specified

Categories and Features

Prompt Engineering

Not specified

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