Workflow Automation

Smoke

File-based HTTP mock server with recording abilities.

Status
Not yet determined
Last checked
Aging · Sep 3, 2026
License
Open source
Pricing
Free tier · from $0
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What it is

Smoke is an open-source tool that allows developers to create and manage file-based HTTP mocks. It includes features for recording real requests, making it easier to test and develop applications without relying on live APIs.

Smoke stands out as a lightweight and straightforward HTTP mocking tool that prioritizes ease of use through file-based configuration and real request recording.

When it fits — and when it doesn’t

A good fit for

  • Teams needing a simple and flexible way to mock HTTP requests during development

  • Projects where recording real traffic is necessary for accurate mocking scenarios

  • Developers who prefer file-based configuration over in-code setup for mocks

Look elsewhere if

  • Scenarios requiring complex, dynamic mock responses that cannot be easily defined in files

  • Teams with strict security policies against using open-source tools without commercial support

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Limited language support beyond JavaScript

    Primary development and documentation focus on JavaScript, limited official support for other languages

  2. 02

    Complex setup for large-scale projects

    Configuration can become cumbersome as the number of mock endpoints increases

  3. 03

    Performance issues under heavy load

    Mock server may experience delays or crashes when handling a large volume of concurrent requests

  4. 04

    Poor documentation for advanced features

    Detailed guides and examples are lacking, making it difficult to implement complex scenarios without trial and error

What it does well

  • File-based HTTP mocking

  • Real request recording capabilities

  • Easy setup and management of mock servers

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up Smoke

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →