Cloud IFC Validator
without the upload
Everything you want from a cloud IFC validator — open a URL, validate instantly, share a report — except the model never leaves your device. 44 quality rules, full IDS 1.0 and a Health Score 0–100 run in your browser via WebAssembly. No install, no account, no file-size paywall.
Validate an IFC file — freeNo account · Nothing uploaded · Works offline · Mac, Windows & Linux
Live tool · in your browser
Try the validator on a sample model
Run it live on a sample IFC, then drop your own. It parses, scores and checks the file entirely on your device — no upload, no queue, no account.
How it compares
Server-side cloud vs in-browser validation
Most "cloud IFC validators" upload your model to a remote server. Browser-based validation gives you the same convenience with none of the data exposure.
| What matters | Typical server-side cloud validator | IFC Viewer Online (in-browser) |
|---|---|---|
| Where the file is processed | Uploaded to a remote server | Your own browser — nothing uploaded |
| Works under NDA / data rules | Often blocked — file leaves your control | Yes — no data changes hands |
| Account / sign-up | Usually required | None |
| Speed | Upload + queue + processing | Instant — runs locally |
| Quality rules | Varies | 44 rules + Health Score 0–100 |
| IDS 1.0 | Varies | Full — all 6 facets |
| Price | Often metered / paid | Free — all use cases |
44 validation rules
What the validator checks
Rules span schema quality, spatial hierarchy, ISO 19650 naming, property completeness, georeferencing and coordination — plus full IDS 1.0.
GUID integrity
Duplicate GlobalIds and invalid base64 format — the most common Revit / ArchiCAD / Tekla export error. Auto-fixable.
Spatial hierarchy
IfcSite → IfcBuilding → IfcBuildingStorey chain, plus orphan elements with no spatial containment.
Naming & ISO 19650
Empty Name / LongName attributes and generic placeholders that break downstream metadata.
Property sets
Missing or empty required Psets for walls, slabs, columns and beams that break quantity takeoff.
Georeferencing
Coordinate offsets > 10 km from origin — a classic federation error across discipline models.
IDS 1.0 compliance
Load a buildingSMART .ids requirements file and validate Entity, Attribute, Property, Classification, Material and PartOf facets.
FAQ
Questions
Is this a real cloud IFC validator?
It gives you everything people want from a cloud IFC validator — a URL you open in any browser, no install, instant results, a shareable report — but it processes the file on your own device instead of a remote server. The IFC is parsed in your browser via WebAssembly, so the model is never uploaded. Cloud-style convenience, without the data-handling risk.
Why validate IFC in the browser instead of a server-side cloud?
Server-side cloud validators require you to upload the model, which is often blocked by NDAs, client agreements, or public-sector data rules. Browser-based validation removes that blocker: no upload, no account, nothing to review with your client's data team — and it is instant, with no queue.
What does it check?
44 quality rules across GUID integrity, spatial hierarchy, orphan elements, naming (ISO 19650), property-set completeness, units, geometry validity, proxy overuse and coordinate offsets — plus a Health Score 0–100, and full buildingSMART IDS 1.0 against any .ids file you load.
Is it really free?
Yes — free for all use cases including commercial work, no account, no file-size paywall. The viewer and validator are open source under the MIT licence.
Can I share the validation results?
Yes. After validating, use Share Report to generate a URL that encodes the full Health Score and issue list. Your client opens it in any browser — the IFC file itself is never included in the link.
Validate your IFC online — without uploading it.
44 rules · Full IDS 1.0 · Health Score 0–100 · No install · No upload · Free
Open IFC Viewer Online →