# ChartDB vs Skillry

ChartDB records 49,523 monthly visits with -33.4% month-over-month growth and Freemium pricing. Skillry records 535,817 monthly visits with +1,762.1% growth and Freemium pricing.

| Metric | [ChartDB](https://openaitools.app/tool/chartdb) | [Skillry](https://openaitools.app/tool/skillry) |
| :--- | :--- | :--- |
| Website URL | https://chartdb.io | https://skillry.dev |
| Categories | AI Diagram Generator, AI Developer Tools, AI Design Generator, Open Source AI Models | AI Code Assistant, AI Design Assistant, AI Website Builder, AI Presentation Generator |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 49,523 | 535,817 |
| MoM Growth Rate | -33.4% | +1,762.1% |
| Primary Market | United States | United States |
| Direct Visits | 19,954 | 242,881 |
| Review Score | 4.6 | 4.5 |
| Saved Count | 1 | 0 |
| Supported Platforms | Website | Website |

## ChartDB

ChartDB attacks a familiar annoyance: understanding an unfamiliar or sprawling database schema. Rather than installing a heavy modeling suite with database access, it asks you to run one read-only query per DBMS — the project publishes a ready-made query for PostgreSQL, MySQL, MariaDB, SQL Server, SQLite, ClickHouse, CockroachDB, Oracle, Snowflake, and BigQuery. Paste the output JSON and you get a full, interactive ER diagram that you can rearrange, annotate, and export.

Beyond visualization, ChartDB works as an editor. You can add tables, subject areas, and sticky notes, edit relationships, use a DBML editor for text-driven modeling, and produce clean DDL scripts in your preferred SQL dialect. The AI ER diagram generator goes the other direction: describe what you want and get an editable, optimized schema draft. Diagrams are also exportable as images or embeddable previews for docs and wikis.

The project is open source under AGPL and has accumulated tens of thousands of GitHub stars, which is why a self-hosted deployment is available alongside the Cloud product. Cloud plans add real-time collaborative editing, database auto-sync that keeps diagrams current as the schema changes, change logs and versioning, and an AI assistant. Teams get multi-user workspaces, 2FA, and priority support; larger organizations can request custom SSO and RBAC terms.

**Pricing & Plans:** ChartDB offers a genuinely free open-source tier (self-hosted, AGPL) that includes all core features and up to two diagrams. Cloud plans run about US$25/month for a single user (Pro) and US$59/month for teams, with annual billing discounts of up to 40%. Custom enterprise pricing covers SAML SSO and granular permissions.

- **One-query schema import:** 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.
- **AI ER diagram generator:** Describe a database idea in plain language and get a fully editable, optimized ER diagram that you can refine and export straight to SQL.
- **DDL and diagram export:** Export clean DDL scripts in your preferred SQL dialect or download diagrams as images and embeddable previews for documentation.
- **Auto-sync and versioning:** On Cloud plans, diagrams stay in sync with the live database automatically, with change logs and version history to track every schema drift.
- **Real-time collaboration:** Invite teammates to view and edit diagrams simultaneously, with multi-user workspaces and 2FA on team plans.

**Strengths:** Truly open source with a generous free self-hosted option and no database access needed; Fast setup — a single query gets you a complete interactive diagram in seconds; Broad DBMS coverage including PostgreSQL, MySQL, SQL Server, SQLite, ClickHouse, Snowflake, BigQuery, and Oracle; AI generation works both ways: prompt-to-diagram and diagram-to-DDL

**Limitations:** Cloud collaboration, auto-sync, and the AI assistant are paid; the free self-hosted tier limits you to two diagrams and ten tables each; Snowflake and BigQuery support sits on higher-tier plans; As a specialized ERD tool it does not replace a full data-governance or lineage platform

[Profile (Markdown)](https://openaitools.app/tool/chartdb.md)

## Skillry

Skillry is a curated library of Agent Skills — reusable packages of instructions, templates and scripts that AI coding agents can install and run. The concept is straightforward: give an agent a well-designed workflow, and it can produce a complete, presentable artifact rather than a rough draft. Skillry focuses on deliverables you would actually show, spanning web pages and landing pages, slide decks, images such as OG graphics, and short videos.

The key differentiator is that Skillry designs the output first. Its team art-directs a finished piece — a page, a deck, a film — then writes the original instructions, templates and scripts that let your agent reproduce that style. Each Skill page displays a real result it made, so you can see the visual point of view before installing. Skills are maintained by the same team as agents and models evolve.

Installation is agent-first. You can browse the catalog on the web, connect via MCP so your agent can search and inspect Skills, or install from the CLI. Free Skills require only a sign-in, while Premium Skills come with a Pro subscription or a one-time lifetime purchase. Model, API and rendering costs are handled by your own environment, not by Skillry.

**Pricing & Plans:** Free Skills are available with a sign-in. Pro is $9.99/month (regularly $19.90) or $79/year (regularly $158), and a Founding Lifetime plan costs $169 one-time. All paid plans include Premium Skills, MCP/CLI/web install and ongoing updates; model and rendering costs are extra.

- **Original in-house Skills:** Every Skill is designed, written and tested by the Skillry team, with templates and scripts built from a finished piece of work.
- **Multiple output types:** Skills cover web pages, slide decks, images, video and reports, so your agent can produce a range of assets.
- **Broad agent support:** Install and run Skills inside Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI and more.
- **Preview before install:** Each Skill page shows a real result it generated, so you can judge the visual style before adding it.
- **Flexible installation:** Add Skills from the web, through an MCP connection or from your CLI, with browser-based authorization.

**Strengths:** Original Skills designed and maintained in-house; Covers websites, slides, images and video in one library; Works across Claude Code, Codex, Cursor and many other agents; Each Skill previews a real result before you install

**Limitations:** Full access to Premium Skills requires a paid plan; Model, API and rendering costs are separate from the subscription; The catalog is newest to market, so coverage keeps evolving

[Profile (Markdown)](https://openaitools.app/tool/skillry.md)

## Frequently Asked Questions

### How do ChartDB and Skillry compare in monthly traffic?

ChartDB has 49,523 monthly visits, while Skillry has 535,817. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

ChartDB has a month-over-month growth rate of -33.4%; Skillry has +1,762.1%.

### How does pricing compare?

ChartDB: Freemium. ChartDB offers a genuinely free open-source tier (self-hosted, AGPL) that includes all core features and up to two diagrams. Cloud plans run about US$25/month for a single user (Pro) and US$59/month for teams, with annual billing discounts of up to 40%. Custom enterprise pricing covers SAML SSO and granular permissions. Skillry: Freemium. Free Skills are available with a sign-in. Pro is $9.99/month (regularly $19.90) or $79/year (regularly $158), and a Founding Lifetime plan costs $169 one-time. All paid plans include Premium Skills, MCP/CLI/web install and ongoing updates; model and rendering costs are extra.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [MotionSites](https://openaitools.app/tool/motionsites) | 1,088,363 | -8.7% | Freemium, Paid | Supplies landing page design inspiration and prompts, focusing more on visual website layouts than code-ready agent skills. | [.md](https://openaitools.app/tool/motionsites.md) |
| 2 | [Impeccable](https://openaitools.app/tool/impeccable) | 1,038,637 | +8.2% | Free | Installs directly as a design skill pack to enforce UI rules, whereas Skillry acts as a broader discovery library. | [.md](https://openaitools.app/tool/impeccable.md) |
| 3 | [Eraser](https://openaitools.app/tool/eraser) | 534,396 | -23.6% | Freemium, Paid, Contact for Pricing | AI diagrams and technical design docs built from your code and systems | [.md](https://openaitools.app/tool/eraser.md) |
| 4 | [SkillsMP — Agent Skills Marketplace](https://openaitools.app/tool/agent-skills-marketplace) | 470,744 | -3.7% | Free | Broader community catalog of open-source agent SKILL.md files, but less focused specifically on design system templates. | [.md](https://openaitools.app/tool/agent-skills-marketplace.md) |
| 5 | [AGENTS.md](https://openaitools.app/tool/agents-md) | 245,457 | +5.7% | Free | Offers an open Markdown convention to guide AI coding assistants, but functions as a standard format rather than a curated library. | [.md](https://openaitools.app/tool/agents-md.md) |
| 6 | [Edraw.AI](https://openaitools.app/tool/edraw-ai) | 216,483 | -10.4% | Freemium, Free Trial, Paid | AI-powered visual collaboration for diagrams, mind maps, and charts | [.md](https://openaitools.app/tool/edraw-ai.md) |
| 7 | [Designeer](https://openaitools.app/tool/designeer) | 153,918 | +284.8% | Free | A hand-picked directory of design engineering resources, tools and inspiration | [.md](https://openaitools.app/tool/designeer.md) |
| 8 | [Cursor Directory](https://openaitools.app/tool/cursor-directory) | 125,466 | +5.3% | Free | Covers a wider range of Cursor plugins and MCP servers, but lacks Skillry's dedicated focus on agent skill files. | [.md](https://openaitools.app/tool/cursor-directory.md) |
| 9 | [AI2SQL](https://openaitools.app/tool/ai2sql) | 65,466 | -6.6% | Freemium | AI SQL assistant that writes, fixes and runs queries on your real schema | [.md](https://openaitools.app/tool/ai2sql.md) |
| 10 | [Chat2DB Local](https://openaitools.app/tool/chat2db-local) | 55,791 | -5.5% | Free Trial, Paid, Contact for Pricing | AI text-to-SQL client for database management and analysis | [.md](https://openaitools.app/tool/chat2db-local.md) |

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Source: https://openaitools.app/compare/chartdb-vs-skillry

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