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onmock.dev VS Roadmark

Compare onmock.dev VS Roadmark and see what are their differences

onmock.dev logo onmock.dev

free api mock tool

Roadmark logo Roadmark

A visual roadmap you branch rather than overwrite: both timelines stay, each with its own decision. Syncs from Linear, Jira, GitHub, and more, so a shared link stays true.
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  • onmock.dev Landing page
    Landing page //
    2023-08-03
  • Roadmark Visual roadmap board with branched timelines
    Visual roadmap board with branched timelines //
    2026-07-28
  • Roadmark Every branch carries a written decision
    Every branch carries a written decision //
    2026-07-28
  • Roadmark Import and sync from Linear, Jira, Notion and 7 more
    Import and sync from Linear, Jira, Notion and 7 more //
    2026-07-28
  • Roadmark A public decision feed for stakeholders
    A public decision feed for stakeholders //
    2026-07-28

Roadmark is a roadmap tool for teams whose plans keep changing.

Most roadmaps die the same way: a date moves, someone overwrites it, and the reason is lost. Six weeks later, nobody trusts the board, and the link you shared with a customer or an investor is quietly wrong.

Roadmark makes a change of plan a first-class object. Instead of overwriting a timeline, you branch it: the original plan and the new one both stay on the board, side by side, and every branch carries a written decision explaining why the direction changed.

It keeps itself current. Boards sync from Linear, Jira, GitHub, GitLab, Asana, Notion, monday.com, Shortcut, Azure DevOps and YouTrack โ€” or from CSV. Sync runs daily, so a link you shared months ago still shows the real plan.

Built for sharing outward. Public read-only links, password-protected or expiring links, an embeddable widget for your own site, plus comments, reactions and email follow-ups from viewers โ€” so the roadmap becomes the page stakeholders check, not another internal tool.

Also included: milestone confidence and slip history, board snapshots and diffs, PNG/SVG/PDF/PPTX export, an investor digest, a template gallery, real-time collaboration, and an audit log on Team.

Optional AI drafts milestones, writes decision notes, and runs a pre-mortem stress test of the plan โ€” with your own API key, or from an included monthly quota.

Free for up to 3 boards. Pro $15/month, Team $49/month.

onmock.dev

Website
onmock.dev
Pricing URL
-
$ Details
-
Platforms
-
Release Date
-
Categories -

Roadmark

$ Details
freemium $15 / Monthly (Pro โ€” flat rate, unlimited boards, 4 members)
Platforms
Web SaaS
Release Date
2026 July
Startup details
Country
United Kingdom
State
England
City
London
Founder(s)
Aleksandr Tretiakov
Employees
1 - 9

onmock.dev features and specs

  • Quick API Mocking
    OnMock.dev allows developers to quickly create mock API endpoints without needing to set up a backend server, which speeds up front-end development and prototyping workflows.
  • Simple and Intuitive Interface
    The platform offers a straightforward, easy-to-use interface that lets users define mock endpoints with minimal configuration, making it accessible even for less experienced developers.
  • No Installation Required
    As a web-based tool, OnMock.dev requires no local installation or setup, allowing developers to start creating mock APIs immediately from any browser.
  • Useful for Testing and Development
    OnMock.dev is particularly helpful during the early stages of development when backend APIs are not yet available, enabling frontend developers to work in parallel with backend teams.
  • Free to Use
    The service appears to be available at no cost, making it an accessible option for individual developers, small teams, and those working on personal or open-source projects.

Possible disadvantages of onmock.dev

  • Limited Awareness and Community
    OnMock.dev is a relatively lesser-known tool with a small user community, which means fewer resources, tutorials, and community support compared to more established alternatives like Mockoon or Postman mock servers.
  • Potential Reliability Concerns
    As a smaller, less established service, there may be concerns about uptime, long-term availability, and maintenance compared to more mature and well-funded mocking solutions.
  • Limited Advanced Features
    The tool may lack advanced features found in competitors, such as dynamic response generation, complex request matching, stateful mocking, or webhook simulation.
  • Dependency on External Service
    Relying on a third-party hosted service for mock APIs means your development workflow could be disrupted if the service experiences downtime or is discontinued.
  • Limited Documentation
    Being a newer and smaller tool, the documentation and onboarding resources may be sparse, potentially making it harder to leverage all available features or troubleshoot issues.

Roadmark features and specs

  • Branching timelines
    Change a plan by branching it, not overwriting it โ€” the original and the new timeline both stay on the board, side by side.
  • Decision log
    Every branch requires a written decision, so the reason a date moved survives the move itself.
  • Sync sources
    Linear, Jira, GitHub, GitLab, Asana, Notion, monday.com, Shortcut, Azure DevOps, YouTrack and CSV.
  • Automatic sync
    Boards re-sync daily, so a link shared months ago still shows the current plan. Any single milestone can be force-synced.
  • Public sharing
    Read-only public links, password-protected and expiring links, and an embeddable widget for your own site.
  • Viewer feedback
    Comments, reactions and email follow on public boards โ€” no account needed to react or follow.
  • Milestone confidence
    Confidence level per milestone plus an append-only slip history showing every date change.
  • Snapshots and diffs
    Point-in-time board snapshots with a visual diff of what changed between them.
  • Export
    PNG, SVG, PDF and PPTX export, plus an investor digest you can send by email.
  • Optional AI
    Drafts milestones, writes decision notes and runs a pre-mortem stress test โ€” with your own API key or an included monthly quota.
  • Seat model
    Flat per-workspace pricing. Unlimited members on Team, and read-only viewers never consume a seat.

Analysis of onmock.dev

Overall verdict

  • OnMock.dev appears to be a developer-focused tool for mocking APIs, useful for testing and prototyping without depending on live backend services, though as a smaller/niche product it's worth evaluating against established alternatives like Mockoon, Postman, or MSW based on your specific workflow needs.

Why this product is good

  • Enables API mocking for frontend development without waiting on backend completion
  • Can speed up testing workflows by simulating various API responses and edge cases
  • Likely offers a simpler, more focused feature set than larger all-in-one API platforms
  • May provide a quicker setup for basic mocking needs compared to configuring full backend stubs

Recommended for

  • Frontend developers needing to work independently of backend API availability
  • Small teams or solo developers prototyping applications quickly
  • QA engineers testing various API response scenarios including errors and edge cases
  • Developers who prefer lightweight, focused tools over comprehensive but complex API platforms

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Roadmark videos

Yellow and White Road Marking Lines Meaning #roadmarkings #driving

Questions & Answers

As answered by people managing onmock.dev and Roadmark.

What makes your product unique?

Roadmark's answer:

Roadmark treats a change of plan as something you record, not something you erase. Every roadmap tool lets you drag a milestone to a new date โ€” and the old date, along with the reason it moved, quietly disappears. In Roadmark you branch the timeline instead: the original plan and the new one both stay on the board, side by side, and the branch carries a written decision explaining the change. Six months later the board answers "why did this slip?" on its own, without anyone digging through Slack.

The other half is that the board keeps itself current. It syncs daily from Linear, Jira, GitHub, GitLab, Asana, Notion, monday.com, Shortcut, Azure DevOps and YouTrack, so a link you shared with a customer or an investor doesn't silently stop being true.

Why should a person choose your product over its competitors?

Roadmark's answer:

Three concrete reasons.

Branching with a decision log. Productboard, Aha! and Roadmunk all show you the plan as it stands today. Roadmark shows you how it got there โ€” every pivot kept, each with the reasoning attached.

Pricing that doesn't punish sharing. Pricing is flat per workspace, not per seat. Team includes unlimited members, and read-only viewers never consume a seat at all โ€” so putting the roadmap in front of customers and stakeholders costs nothing extra.

Built to be shared outward. Public read-only links, password-protected and expiring links, an embeddable widget, and comments, reactions, and email follow for viewers without an account.

Where Roadmark is not the answer: if what you need is a feedback and prioritisation suite โ€” collecting feature requests, scoring them, running customer boards โ€” Productboard and ProdPad do that, and Roadmark does not.

How would you describe the primary audience of your product?

Roadmark's answer:

Small product and engineering teams, roughly 2โ€“20 people, where the plan changes often and someone outside the team keeps asking where things stand: founders reporting to investors, product managers at startups, agencies and consultancies reporting to clients, and indie makers running a public roadmap.

What's the story behind your product?

Roadmark's answer:

Roadmark was built in 2026 around one observation: roadmaps don't fail because teams plan badly; they fail because plans change and the tools only store the latest version. A date moves, the bar gets dragged, and the reason is gone. Six weeks later the board is no longer true, and nobody trusts it enough to look.

So the plan itself became the thing worth versioning. Keep the old timeline, branch to the new one, attach the decision to the branch. Sync, public links, and the decision feed all exist for the same purpose: to keep that history accurate without anyone maintaining it by hand.

Which are the primary technologies used for building your product?

Roadmark's answer:

Next.js 15 (App Router) and TypeScript on the front end, Tailwind CSS 4 for styling, Supabase (PostgreSQL, Realtime and Auth) as the backend, and Vercel for hosting. Tested with Vitest and Playwright.

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What are some alternatives?

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