# ChartDB vs Convex

ChartDB records 49,523 monthly visits with -33.4% month-over-month growth and Freemium pricing. Convex records 390,417 monthly visits with -18.7% growth and Freemium, Paid pricing.

| Metric | [ChartDB](https://openaitools.app/tool/chartdb) | [Convex](https://openaitools.app/tool/convex) |
| :--- | :--- | :--- |
| Website URL | https://chartdb.io | https://www.convex.dev |
| Categories | AI Diagram Generator, AI Developer Tools, AI Design Generator, Open Source AI Models | AI Developer Tools, AI Code Generator, AI Workflow, AI Code Assistant |
| Pricing Model | Freemium | Freemium, Paid |
| Monthly Visits | 49,523 | 390,417 |
| MoM Growth Rate | -33.4% | -18.7% |
| Primary Market | United States | United States |
| Direct Visits | 19,954 | 253,533 |
| Review Score | 4.6 | 4.6 |
| Saved Count | 1 | 3 |
| 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)

## Convex

Convex takes the usual backend checklist — database, queries and mutations, background jobs, storage, search, auth — and runs it as one cohesive TypeScript programming model. Data is reactive by default: when a mutation changes a document, every subscribed client updates without you writing polling or subscription code. Because functions are serverless and transactional, concurrency problems that normally require careful locking are handled by the platform.

A big part of the current pitch is agentic coding. Convex ships AI-friendly guidelines and plugins for editors such as Claude Code and Codex, along with official Agent, Workflow and Workpool components, so an assistant can scaffold schema, functions and integrations that match Convex conventions. The AI Gateway lets you route requests to many models through a single credential instead of managing a dozen provider keys.

Pricing is usage based with a generous free tier. The Starter option is pay-as-you-go, Professional runs about $25 per developer per month with higher included resources, and Business/Enterprise plans start around a $2,500 monthly minimum with SSO, SLAs and dedicated deployments. Data region selection, SOC 2 Type 2 and HIPAA support are available on higher tiers.

**Pricing & Plans:** Free/Starter tier with pay-as-you-go usage pricing; Professional around $25 per developer/month; Business & Enterprise with a ~$2,500 monthly minimum offering SSO, SLAs and dedicated deploys.

- **Reactive database:** Document store with ACID transactions that pushes live updates to subscribed clients automatically, no manual invalidation needed.
- **All-TypeScript backend:** Schema, queries, mutations, actions and HTTP endpoints are written in TypeScript with end-to-end type safety from client to database.
- **Convex Components:** Open-source modular building blocks such as Agent, Workflow, Workpool, Stripe, Resend and Twilio that drop into your app.
- **AI Gateway:** Call major language models through one unified API and billing path instead of managing separate provider credentials.
- **Built-in search, storage and auth:** Vector search, full-text search, file storage and 80+ OAuth authentication providers come standard.

**Strengths:** Reactive data sync is native, removing a whole class of caching and polling code; End-to-end TypeScript type safety catches mistakes before deployment; Rich component library covering agents, workflows, payments and messaging; Clear usage-based pricing with a real free tier and transparent unit rates

**Limitations:** Vendor lock-in: application logic is built around Convex-specific functions and conventions; Costs scale with compute and I/O usage, which can surprise high-traffic apps; Self-hosting is possible but less mature than fully managed deployments

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

## Frequently Asked Questions

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

ChartDB has 49,523 monthly visits, while Convex has 390,417. 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%; Convex has -18.7%.

### 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. Convex: Freemium, Paid. Free/Starter tier with pay-as-you-go usage pricing; Professional around $25 per developer/month; Business & Enterprise with a ~$2,500 monthly minimum offering SSO, SLAs and dedicated deploys.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Lovable](https://openaitools.app/tool/lovable) | 31,052,090 | +3.8% | Freemium | AI app builder that converts natural language into full-stack web applications, but with less backend database control. | [.md](https://openaitools.app/tool/lovable.md) |
| 2 | [Cursor](https://openaitools.app/tool/cursor) | 23,297,751 | +8.4% | Freemium | AI-native code editor for multi-file development, requiring manual backend setup compared to Convex's managed platform. | [.md](https://openaitools.app/tool/cursor.md) |
| 3 | [Base44](https://openaitools.app/tool/base44) | 14,039,232 | +0.5% | Freemium, Paid, Contact for Pricing | No-code AI development platform turning prompts into applications, but less suited for custom backend TypeScript code. | [.md](https://openaitools.app/tool/base44.md) |
| 4 | [Replit](https://openaitools.app/tool/replit) | 10,016,437 | -7.7% | Freemium, Paid | Cloud development platform with an autonomous AI agent for building apps, though lacking Convex's specialized reactive database. | [.md](https://openaitools.app/tool/replit.md) |
| 5 | [v0 by Vercel](https://openaitools.app/tool/v0-dev-by-vercel-labs) | 2,774,275 | -14.3% | Freemium | Generative UI platform by Vercel for frontend components, requiring separate backend configuration for full database reactivity. | [.md](https://openaitools.app/tool/v0-dev-by-vercel-labs.md) |
| 6 | [Trae](https://openaitools.app/tool/trae) | 702,366 | -7.8% | Freemium | AI integrated development environment that plans and edits code, but does not provide managed backend database infrastructure. | [.md](https://openaitools.app/tool/trae.md) |
| 7 | [Builder.io](https://openaitools.app/tool/builder-io) | 608,182 | +3.6% | Freemium, Subscription, Contact for Pricing | Agent-native visual development platform focused on front-end code and headless content, lacking reactive backend functions. | [.md](https://openaitools.app/tool/builder-io.md) |
| 8 | [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) |
| 9 | [Firebase Studio](https://openaitools.app/tool/firebase-studio) | 251,404 | -13.9% | Free Trial | Browser-based full-stack development workspace with Google cloud infrastructure, but less focused on reactive TypeScript databases. | [.md](https://openaitools.app/tool/firebase-studio.md) |
| 10 | [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) |

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

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