What is The Punisher?

The Punisher is a visual testing tool that automatically compares your Figma designs with actual web implementations. It detects pixel-level differences and generates detailed correction reports you can share directly with your development team or AI coding agents.

How does Figma to code comparison work?

Upload your Figma design, connect your live, preproduction, or local website, and The Punisher will perform an automated pixel-by-pixel comparison. It generates a detailed report highlighting every visual discrepancy with actionable fix suggestions.

Is The Punisher free to use?

Yes. The Punisher offers a free plan with 5 tokens per month, no credit card required. Paid plans are Basic at 49 EUR per month for 50 tokens and Pro at 149 EUR per month for 200 tokens, plus custom Enterprise volumes.

Which platforms does The Punisher support?

The Punisher is available as a desktop application for both macOS (11.0 or later) and Windows (10 or later). It works with any website - live, staging, or local development environments.

How is The Punisher different from other visual testing tools like Percy or Chromatic?

The Punisher is purpose-built for Figma-to-code comparison. It compares each element and section independently and generates actionable correction prompts that can be fed directly to AI coding agents like GitHub Copilot, Cursor or Claude - eliminating subjective design reviews and enabling automated fixes.

Does The Punisher work with AI coding agents?

Yes. Each comparison report includes ready-to-use correction prompts you can paste directly into AI coding agents such as GitHub Copilot, Cursor, Claude or ChatGPT to automatically fix the detected design discrepancies.

Is my design data private?

Yes. The Punisher runs as a desktop application - your designs and screenshots are processed locally on your machine. We do not store your design files on our servers.

The Punisher vs. BackstopJS

Name: The Punisher
Availability: InStock
Author: The Punisher

Last updated 25 July 2026 · Written by the team that builds The Punisher

Short answer

BackstopJS is free and excellent for self-hosted regression detection if you are willing to maintain the configuration. The Punisher requires no config and answers a question BackstopJS structurally cannot: does the page match the Figma design?

BackstopJS is the long-standing open-source option: define scenarios in backstop.json, capture reference screenshots, and diff future runs against them. No licence fee, full control, runs anywhere. The Punisher starts from the design instead — it measures the rendered page against your Figma frame and reports what is wrong in real units.

The honest trade-off is not features versus price. It is whose time pays for the tool: BackstopJS spends engineering hours; The Punisher spends a subscription and gives those hours back.

At a glance

Feature comparison between The Punisher and BackstopJS
Capability	The Punisher	BackstopJS
Reference for comparison	Figma design (source of truth)	Reference screenshot you approved
Licence cost	Free tier, then 49€/month	Free and open source
Configuration required	None — paste a URL	JSON scenarios, selectors, viewports
Verifies match to design intent	Yes	No
Reports exact corrective values (px, hex, font)	Yes	Pixel-difference mask
AI-ready correction prompts	Yes	No
Flake management (fonts, animation, dynamic content)	Handled by design-aware matching	Manual selectors, delays and thresholds
Reference image storage	Not required	Committed to your repository
Headless CI execution	Desktop and Chrome extension	Native — a core strength
Full control / self-hosting	Local execution, hosted account	Entirely yours
Support	Email support, priority on Pro	Community

What The Punisher does that BackstopJS does not

Zero configuration
No backstop.json, no selector maintenance, no reference image approvals cluttering pull requests.
Catches what a baseline cannot
If the page was built wrong on day one, BackstopJS will happily protect the wrong version forever. The Punisher measures against the design.
Readable output for non-engineers
Designers and PMs can read a Punisher report. A pixel-mask PNG is an engineering artefact.
AI-ready fixes
Each finding becomes a prompt for Copilot, Cursor or Claude Code, so fixing is a paste rather than a hunt through CSS.

When BackstopJS is the right choice

Choose BackstopJS when you want zero licence cost, full control of the pipeline, and you have someone willing to own the configuration. It is battle-tested, scriptable, runs anywhere Node runs, and for a stable site with a handful of key pages it is genuinely hard to beat on value.

When The Punisher is the right choice

Choose The Punisher when the problem is design fidelity rather than regression, when nobody wants to own test infrastructure, or when non-engineers need to run and read the checks. Because it anchors to the Figma design, it works on the very first build of a page — the exact moment BackstopJS has nothing to compare against.

It is also the pragmatic answer when a BackstopJS suite has quietly rotted: scenarios failing on font loading, references never re-approved, everyone ignoring the red.

Cost comparison

BackstopJS costs 0€ in licence and somewhere between two and five engineering days in initial setup for a real site, plus recurring triage. At a blended 400€/day that is roughly 800–2,000€ up front before the first regression is caught, and the meter keeps running on maintenance. The Punisher is 0€ for 5 comparisons a month, 49€/month for 50 and 149€/month for 200, with no setup time. Neither number is a trick: pick the one that matches whether your scarce resource is cash or engineering hours.

Use them together

A sensible stack: The Punisher verifies each new page matches Figma at handoff, then BackstopJS locks that verified state into CI for free. You get design correctness at the start and regression protection afterwards — see catching visual regressions in CI.

No config. No reference images. No JSON.

5 free comparisons every month against your real Figma design.

Download The Punisher Or try the free Chrome extension

Frequently asked questions

Is The Punisher an alternative to BackstopJS?

They solve adjacent problems. BackstopJS captures screenshots of your pages and diffs them against reference screenshots you approved earlier. The Punisher compares the rendered page against the Figma design and reports the exact numeric differences. BackstopJS is the cheaper option for pure regression detection; The Punisher is the option that catches design drift a baseline can never catch.

BackstopJS is free — why pay for anything?

BackstopJS has no licence cost but real maintenance cost: writing and updating backstop.json scenarios, handling flaky renders from fonts, animations and dynamic content, approving reference images, and storing them in the repository. Teams routinely spend several engineering days on setup and recurring hours on triage. The Punisher has a free tier too, and requires no configuration or reference-image management.

Can BackstopJS compare a page to a Figma design?

Not natively. BackstopJS diffs a screenshot against a reference screenshot. You could export a Figma frame as a PNG and use it as the reference, but there is no design-element awareness, so the report is a red pixel mask rather than "padding is 20px, should be 24px".

Does The Punisher run in CI like BackstopJS?

The Punisher runs as a desktop app on macOS and Windows plus a Chrome extension, so it fits the design-QA moment — at handoff, before a pull request and before release. BackstopJS is designed to run headless in a pipeline, which remains its strength.

Which is better for a small team?

If you have an engineer who enjoys owning test infrastructure and your goal is catching regressions, BackstopJS is excellent value. If your bottleneck is design QA and nobody wants to maintain scenario config, The Punisher gets you a useful report in minutes, starting free.