ChartDB records 49,523 monthly visits with -33.4% month-over-month growth and Freemium pricing. PromptBase records 538,129 monthly visits with -1.8% growth and Paid pricing.
Open-source database diagram editor with AI-generated ER diagrams
Buy a prompt that already works - or sell the ones you have perfected.
| Dimension / Metric | | |
|---|---|---|
| Official Domain | chartdb.io | promptbase.com |
| Pricing Model | Freemium | Paid |
| Monthly Visits | 49.52K (49,523) | 538.13K (538,129) |
| MoM Traffic Delta | -24.87K (-33.4%) | -9.85K (-1.8%) |
| Primary Market & Share | 🇺🇸 United States (12.1%) | 🇺🇸 United States (27.7%) |
| Direct Visits / mo | 19.95K | 256.49K |
| User Rating | 4.6 | 3.7 |
| Supported Platforms | Website | Website |
Open-source database diagram editor with AI-generated ER diagrams
Paste a single read-only query result and ChartDB renders the whole schema as an ER diagram, with no direct database access or local agent required.
Describe a database idea in plain language and get a fully editable, optimized ER diagram that you can refine and export straight to SQL.
Export clean DDL scripts in your preferred SQL dialect or download diagrams as images and embeddable previews for documentation.
On Cloud plans, diagrams stay in sync with the live database automatically, with change logs and version history to track every schema drift.
Buy a prompt that already works - or sell the ones you have perfected.
Thousands of ready-to-use prompts organised by model and by output type, from illustration styles to marketing copy.
Listings are grouped by the model they were built for, so you can filter to the tool you actually use.
Each prompt is shown with example outputs, making it easy to judge the style before spending anything.
Anyone can upload prompts for sale and earn revenue share on every copy sold.
Free / Open-sourceLargely free community-driven prompt sharing and instant chatting, rather than a transactional marketplace.
Free / Open-sourceLargely free community-driven prompt sharing and instant chatting, rather than a transactional marketplace.
SpecialistMassive free prompt search engine and discovery platform, but lacks PromptBase's direct creator monetization marketplace.
SpecialistMassive free prompt search engine and discovery platform, but lacks PromptBase's direct creator monetization marketplace.
SpecialistAI diagrams and technical design docs built from your code and systems
SpecialistAI diagrams and technical design docs built from your code and systems
SpecialistAI-powered visual collaboration for diagrams, mind maps, and charts
SpecialistAI-powered visual collaboration for diagrams, mind maps, and charts
SpecialistDeeply specialized catalog for Midjourney styles and reference codes, but lacks multi-model text and video coverage.
SpecialistDeeply specialized catalog for Midjourney styles and reference codes, but lacks multi-model text and video coverage.
Free / Open-sourceFree, community-curated AI prompt library for ChatGPT, Claude and Gemini
Free / Open-sourceFree, community-curated AI prompt library for ChatGPT, Claude and Gemini
SpecialistAI SQL assistant that writes, fixes and runs queries on your real schema
SpecialistAI SQL assistant that writes, fixes and runs queries on your real schema
Free / Open-sourceAI text-to-SQL client for database management and analysis
Free / Open-sourceAI text-to-SQL client for database management and analysis
Diagrams from text, code, or a single prompt
Diagrams from text, code, or a single prompt
SpecialistReady-made database schemas, sample data and an AI schema designer
SpecialistReady-made database schemas, sample data and an AI schema designer
Free / Open-sourceCommunity marketplace for AI prompts, agents, and automations
Free / Open-sourceCommunity marketplace for AI prompts, agents, and automations
SpecialistA searchable AI prompt database with 25 AI tools built in
SpecialistA searchable AI prompt database with 25 AI tools built in
