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Runtimes & workflows

Durabull vs Quirrel

Quirrel’s official acquisition FAQ says existing accounts could log in through July 31, 2022, and the service terminated on August 1. It lists Netlify Scheduled Functions, self-hosted Quirrel, and Zeplo as migration options. Its author has since called the project maintenance mode and suggested libraries such as BullMQ for self-hosting. Moving to BullMQ is a separate architecture decision; Durabull applies only after your jobs run on Redis-backed BullMQ.

Quirrel website ↗3 primary referencesDiscontinued service
System map
Your applicationProducers & workers
enqueue / process
Redis + BullMQQueue state & job lifecycle
runtime
inspect / operate
DurabullDashboard · alerts · MCP
operations
A runtime changes how jobs execute. A dashboard changes how you operate them.
The case for Quirrel

Hosted Quirrel is no longer available. Self-hosting remains possible, but assess maintenance before starting a new project.

The case for Durabull

If you moved those jobs to BullMQ, Durabull provides the dashboard, alerts, and MCP for that Redis.

Capabilities

The details that change the decision

Compare the documented deployment modes. “Not documented” means we did not find a vendor claim, not proof that a capability is impossible. Check the primary sources.
Durabull versus Quirrel feature comparison
FeatureDurabullQuirrel
HostedFree to startEnded 2022
Migration pathBuilt for BullMQFAQ lists Netlify, self-hosting, and Zeplo

Setup

How Quirrel connects

The open-source server uses Redis when self-hosted. The hosted service has ended.

Application changes. n/a for a new hosted project.

Queue discovery
n/a
Environments
n/a
Alerts
n/a
AI & MCP
Not documented.

Economics

Understand what you are paying for

Different products, different cost boundaries. Durabull’s hosted app is free to start and covers its dashboard. Redis, worker compute, storage, networking, and operational work remain yours. A runtime’s usage charges may cover orchestration or compute. The prices here are not a total-cost or savings benchmark.
Quirrel pricing
No hosted product to buy. The open-source server is MIT-licensed; you pay for Redis.
Quirrel license
MIT. The author describes the project as maintenance mode; the last commit to the main repository was in June 2023.
Durabull
Hosted dashboard is free to start. Redis, worker compute, and infrastructure operations remain your costs. Check the pricing page for current terms. Apache License 2.0 (OSI-approved open source). Self-host on your own infrastructure.

Questions about Quirrel and Durabull

Can I still use Quirrel Cloud?

No. The official FAQ says Quirrel stopped accepting new customers after the Netlify acquisition, existing accounts could log in through July 31, 2022, and the service terminated on August 1, 2022, with no charges after the final July bill.

Evidence

Sources & methodology

Reviewed against vendor documentation, public pricing, and source repositories. This is a documentation comparison, not a hands-on benchmark. Vendor docs may describe different editions or deployment modes; confirm those details before purchasing.

Durabull details: product documentation, pricing, and MCP reference. Found a change? Send a correction.

Continue your research

Connect Redis. Queues appear.

Inspect your Redis-backed BullMQ queues in one place. Hosted Durabull is free to start.

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