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Design · head to head

Cadence Allegro vs Photopea

Cadence Allegro logo

Cadence Allegro

Design

High-speed PCB design and constraint-driven routing for complex boards

From
On request
Rated
-
Full reviewWebsite
Photopea logo

Photopea

Design

Free online photo editor

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Photopea has a free tier, so it costs nothing to try first.
  • Each has a real cost: Cadence Allegro cadence publishes no prices; resellers quote Allegro X from roughly $5,700 per seat per year on lease or about $18,000 perpetual with support, so the entry cost is several times a mainstream PCB tool and budget approval usually needs a business case.; Photopea performance becomes sluggish and prone to crashes with high-resolution images or multi-layered files
  • They diverge on capability: Cadence Allegro covers Constraint Manager, Photopea covers Photo editing.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Cadence Allegro and Photopea actually diverge.

Attributes where Cadence Allegro and Photopea differ
AttributeCadence AllegroPhotopea
Starting priceOn requestFree
Pricing modelquoteUnknown
Free tierNoYes
PlatformsWindows, LinuxWeb
FoundedUnknown2013

Identical on both: user rating (Not yet rated), category (Design).

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 Cadence Allegro

  • Constraint Manager
  • High-speed routing
  • Rigid-flex and embedded components
  • 3D canvas
  • Sigrity integration
  • Team design
  • Manufacturing output

Only in Photopea

  • Photo editing
  • PSD compatibility
  • Layer support
  • Selection tools
  • Filters and effects
  • Google Drive
  • Dropbox
  • Adobe fonts

What people use each for

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

Cadence Allegro

  • Routing a DDR5 or high-speed SerDes board where length matching and impedance rules must be enforced during layout, not checked afterwardsnot Photopea
  • A rigid-flex design with multiple stackups that a general-purpose PCB tool cannot represent correctlynot Photopea
  • A team of PCB designers working concurrently on partitions of one large backplanenot Photopea
  • An organisation that already runs Sigrity or Clarity analysis and wants the layout constraints and the simulation to share one rule setnot Photopea

Photopea

  • Quick photo editsnot Cadence Allegro
  • PSD file editingnot Cadence Allegro
  • Web designnot Cadence Allegro
  • Social media graphicsnot Cadence Allegro

Where each one falls short

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

Cadence Allegro

  • Cadence publishes no prices; resellers quote Allegro X from roughly $5,700 per seat per year on lease or about $18,000 perpetual with support, so the entry cost is several times a mainstream PCB tool and budget approval usually needs a business case.
  • The learning curve is steep and the interface carries decades of accumulated convention, so a designer coming from another tool needs weeks to become productive and formal training is effectively mandatory.
  • Capability is split across product tiers and add-ons, so the feature you assumed was in Allegro may be an extra SKU, and the quoted configuration deserves a line-by-line check against your actual requirements.
  • Perpetual licences still carry annual maintenance to stay on current releases, and lapsing maintenance means paying to rejoin later, so the perpetual option is only cheaper over a long horizon.
  • Library and part data management is a project in its own right; teams that treat it as an afterthought end up with inconsistent footprints that surface as manufacturing defects rather than design errors.

Photopea

  • Performance becomes sluggish and prone to crashes with high-resolution images or multi-layered files
  • Risk of losing work due to browser crashes or save failures
  • Aggressive advertising that can slow down the entire computer
  • No local installation option, always requires browser access
  • Basic file organization and version tracking compared to professional tools

Pricing, plan by plan

Cadence Allegro

On request
  • Allegro X PCB Designer$undefined/year
    • Constraint-driven layout and routing
    • High-speed and rigid-flex support
    • Sold as annual lease or perpetual licence
  • Allegro X Enterprise$undefined/year
    • Team design and concurrent editing
    • Integrated signal and power integrity
    • Data management and library control

Photopea

Free

No published plan breakdown. See the Photopea review.

Which should you pick?

Choose Cadence Allegro if

  • You need constraint manager.
  • You work on Windows, Linux.
  • You also want high-speed routing.
Cadence Allegro review

Choose Photopea if

  • You need photo editing.
  • You want to start without paying.
  • You also want psd compatibility.
Photopea review

Questions people ask

Is Cadence Allegro or Photopea better?
Neither clearly leads. Cadence Allegro starts at On request and Photopea at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cadence Allegro or Photopea?
Photopea has a free tier; the other does not. Paid plans start at On request for Cadence Allegro and Free for Photopea.
Does Cadence Allegro or Photopea run on more platforms?
Cadence Allegro runs on Windows, Linux. Photopea runs on Web.
Can I use Photopea for free?
Yes. Photopea has a free tier, so you can try it without paying. Cadence Allegro starts at On request.
What is Cadence Allegro best used for?
Cadence Allegro is most often used for routing a ddr5 or high-speed serdes board where length matching and impedance rules must be enforced during layout, not checked afterwards, a rigid-flex design with multiple stackups that a general-purpose pcb tool cannot represent correctly, a team of pcb designers working concurrently on partitions of one large backplane, an organisation that already runs sigrity or clarity analysis and wants the layout constraints and the simulation to share one rule set. Of those, routing a ddr5 or high-speed serdes board where length matching and impedance rules must be enforced during layout, not checked afterwards and a rigid-flex design with multiple stackups that a general-purpose pcb tool cannot represent correctly are not what Photopea is typically brought in for.
What can Cadence Allegro do that Photopea cannot?
Cadence Allegro covers Constraint Manager, High-speed routing, Rigid-flex and embedded components, 3D canvas. Photopea covers Photo editing, PSD compatibility, Layer support, Selection tools.

Answered from the vendors’ own pages

Cadence Allegro: Can I still buy a perpetual Allegro licence?

Yes. Cadence channel partners quote both annual lease and perpetual licences for Allegro X, with perpetual starting around $18,000 including support. OrCAD X is more commonly sold as lease only.

Photopea: Is Photopea free to use?

Yes, Photopea is completely free and supported by ads displayed within the browser. No subscription or payment is required to use the full feature set.

Source
Cadence Allegro: How does Allegro differ from OrCAD?

OrCAD X is schematic capture and mainstream PCB layout; Allegro X is the high-speed implementation environment with the full constraint manager. They share a database, so moving up does not mean redrawing.

Photopea: Does Photopea support Photoshop PSD files?

Yes, Photopea fully supports Photoshop PSD files including layers, masks, text, and effects. It can read and export files back to PSD, PNG, JPG, PDF, SVG, or GIF format.

Source
Cadence Allegro: Is there a free or student version?

Cadence offers time-limited evaluation and academic programmes, but there is no free commercial tier.

Photopea: What platforms does Photopea run on?

Photopea is a web-based editor accessible through any modern browser including Chrome, Firefox, Safari, Edge, and Opera. It can be added to desktop as a shortcut or Chrome extension.

Source
Cadence Allegro: Do I need Sigrity as well?

Only if you need signal or power integrity simulation. Allegro enforces constraints but does not simulate; Sigrity is a separate purchase.

Photopea: Does Photopea upload my files to servers?

No. Photopea processes images entirely within your browser and does not upload files to external servers, keeping your work private and secure.

Source
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