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Databases · head to head

QuestDB vs ToolJet

QuestDB logo

QuestDB

Databases

Fast open source time-series database for high throughput ingestion

From
Free
Free plan
Yes
Visit QuestDBFull review
ToolJet logo

ToolJet

No-Code

Open-source low-code platform for building internal tools and business apps

From
Free
Free plan
Yes
Visit ToolJetFull review

The short version

  • QuestDB is free; ToolJet starts at $79/mo.
  • Only QuestDB lists high Throughput Ingestion; only ToolJet lists drag-and-drop app builder.
  • Where QuestDB falls short: open-source edition lacks high-availability, distributed architecture, and enterprise security features.
  • Where ToolJet falls short: free and Pro tiers cap end users at 50, which may be too low for apps needing broad internal distribution.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which QuestDB and ToolJet actually diverge.

Attributes where QuestDB and ToolJet differ
AttributeQuestDBToolJet
Pricing modelOpen-sourceFreemium
PlatformsSelf-hosted, WebWeb, API, Linux, Windows, macOS
CategoryDatabasesNo-Code

Identical on both: starting price (Free), free tier (Yes).

Not yet recorded: founded for ToolJet.

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in QuestDB

  • High Throughput Ingestion
  • SQL Support
  • Time-series Optimization
  • SIMD Vectorization
  • Column-oriented Storage
  • Built-in Web Console
  • InfluxDB Line Protocol
  • PostgreSQL

Only in ToolJet

  • Drag-and-drop app builder
  • AI-assisted generation
  • Database and API connectors
  • Self-hosted and air-gapped deployment
  • Multi-instance deployments
  • Dedicated support manager

What people use each for

The jobs each tool is most often brought in to do.

QuestDB

  • Time-series analytics ingesting up to 20M rows/second from IoT sensors or financial data feedsnot ToolJet
  • Real-time dashboarding with 32ms time-to-first-row latency for minute-level analyticsnot ToolJet
  • Applications requiring multi-tier storage (hot ingest, real-time SQL, cold Parquet archive)not ToolJet

ToolJet

  • Building internal admin dashboards and appsnot QuestDB
  • Self-hosted or air-gapped internal tool deploymentnot QuestDB
  • AI-assisted rapid app prototypingnot QuestDB
  • Connecting multiple data sources into one appnot QuestDB

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

QuestDB

  • Open-source edition lacks high-availability, distributed architecture, and enterprise security features
  • Enterprise edition pricing not published; requires contacting sales for custom quote
  • Ingestion limit of 20M rows/sec platform-dependent; may not scale to extreme throughput requirements

ToolJet

  • Free and Pro tiers cap end users at 50, which may be too low for apps needing broad internal distribution
  • Enterprise pricing starts at a steep $3,000/month, a large jump from the $199/month Team plan
  • AI credits reset monthly and do not roll over, penalizing uneven month-to-month usage
  • Smaller integration and community ecosystem than more established players like Retool

Pricing, plan by plan

QuestDB

Free

No published plan breakdown. See the QuestDB review.

ToolJet

Free
  • FreeFree
    • 2 builders
    • 50 end users
    • 2 apps
  • Pro$79/mo
    • Unlimited builders (per-builder pricing)
    • 50 end users
    • 5 apps
  • Team$199/mo
    • Unlimited builders (per-builder pricing)
    • 100 end users
    • Unlimited apps
  • Enterprise$3,000/mo
    • Unlimited end users
    • Custom AI credits
    • Dedicated support manager

Which should you pick?

Choose QuestDB if

  • You need high throughput ingestion.
  • You want to start without paying.
  • You work on Self-hosted, Web.
  • You also want sql support.
QuestDB review

Choose ToolJet if

  • You need drag-and-drop app builder.
  • You want to start without paying.
  • You work on Web, API, Linux, Windows, macOS.
  • You also want ai-assisted generation.
ToolJet review

Questions people ask

Is QuestDB or ToolJet better?
Neither clearly leads. QuestDB starts at Free and ToolJet at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, QuestDB or ToolJet?
QuestDB starts at Free and ToolJet at Free.
Does QuestDB or ToolJet run on more platforms?
QuestDB runs on Self-hosted, Web. ToolJet runs on Web, API, Linux, Windows, macOS.
Can I use QuestDB for free?
Both have a free tier, so you can try either at no cost before committing.
What is QuestDB best used for?
QuestDB is most often used for time-series analytics ingesting up to 20m rows/second from iot sensors or financial data feeds, real-time dashboarding with 32ms time-to-first-row latency for minute-level analytics, applications requiring multi-tier storage (hot ingest, real-time sql, cold parquet archive). Of those, time-series analytics ingesting up to 20m rows/second from iot sensors or financial data feeds and real-time dashboarding with 32ms time-to-first-row latency for minute-level analytics are not what ToolJet is typically brought in for.
What can QuestDB do that ToolJet cannot?
QuestDB covers High Throughput Ingestion, SQL Support, Time-series Optimization, SIMD Vectorization. ToolJet covers Drag-and-drop app builder, AI-assisted generation, Database and API connectors, Self-hosted and air-gapped deployment.

Answered from the vendors’ own pages

QuestDB: How much does QuestDB Enterprise cost?

QuestDB does not publish specific pricing for the Enterprise tier. Customers must contact QuestDB via their enterprise contact form to receive a custom quote.

Source
ToolJet: What happens if I run out of AI credits?

Users can continue using all other ToolJet features as normal and can contact support to purchase additional AI credits when the monthly allotment runs out.

Source
QuestDB: Does QuestDB offer a free version?

Yes, QuestDB Open Source is completely free and recommended for evaluation, prototyping, and pilot projects. Enterprise features, high availability, security, and dedicated support require the paid Enterprise tier.

Source
ToolJet: Do unused AI credits roll over?

No, AI credits reset every month and unused credits do not carry over, which ToolJet says helps maintain consistent service quality.

Source
QuestDB: What deployment options does QuestDB offer?

QuestDB offers open source deployment, Enterprise deployment, and Bring Your Own Cloud (BYOC) deployment. Pricing details for BYOC and Enterprise tiers are not published and require direct contact with sales.

Source
ToolJet: Can ToolJet be deployed on-premise?

Yes, both the community and enterprise editions support on-premise and air-gapped deployments, typically completed in under 30 minutes.

Source
ToolJet: Is there a free trial for paid plans?

ToolJet offers a 14-day free trial for both its business and enterprise editions.

Source
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