Yes. Up to 100 MB per file and up to 3 files per request are free. Files expire in 72 hours unless you pay $2 to extend by 30 days, or pay to group them into a 30-day space for $5.

Do I need to sign up?

No. Anonymous use is the default. You can optionally attach your email so you can recover files later if you lose the share link.

How long do files last?

Free files expire in 72 hours. After that there is a 7-day grace period during which a $2 extend will bring the file back for 30 more days. After the grace period the storage is permanently purged.

Can AI agents use quik.space?

Yes. quik.space exposes an MCP (Model Context Protocol) server and accepts the x402 standard for stablecoin micropayments on Base. Agents do not need API keys or signup — their wallet is their identity.

What file types are supported?

Any file up to 5 GB. The recipient page renders inline previews for images, audio, video, PDFs, markdown, HTML (sandboxed), Microsoft Office docs, and plain text or code.

Binary or ASCII STL? Does it matter?

We do not care. Both formats pass through unchanged.

Will the slicer recognize the file?

Yes. STL is the universal 3D printing format. Every slicer reads it.

What if my STL is over 5 GB?

Reduce mesh decimation in your DCC before exporting, or split the model. 5 GB is the hard cap.

STL does not encode units; slicers assume millimeters by convention. We do not modify the file.

.stl3d

How to send an STL file.

STL is the format every 3D printer reads. The files get big when geometry is dense, dental scans, photogrammetry, organic sculpts. quik.space takes the STL byte-for-byte and gives the recipient a clean download to drop into Cura, PrusaSlicer, or any slicer.

Drop your STL 3D print file here.

Free up to 100 MB. No signup, no email needed.

No email means no recovery. If you lose this link, we can't get you back to this file.

Price scales with file count, up to 25 files. Shown once. 7-day expiry.

Have a code? Open with code →

What is a STL 3D print file?

STL 3D print file files use the .stl extension and the model/stl MIME type. The format sits in the 3d category. Typical files run 1 MB - 1 GB, which is well above what most email services will accept as an attachment.

Why you can’t email a STL 3D print file

STL files for 3D printing get huge fast. A high-resolution dental scan or photogrammetry capture is hundreds of megabytes. Email is not the right tool.Slack, Discord, and most other workplace tools have similar caps, often around 1 GB for free tiers and with aggressive per-channel storage limits. Even when the file fits, it counts against the recipient’s mailbox quota forever.

How quik.space handles STL 3D print file

quik.space stores the STL byte-for-byte. Binary or ASCII format, normals included, no re-tessellation. The recipient downloads and slices it in Cura, PrusaSlicer, or any printer software. The share page does not render 3D scenes inline. The recipient downloads the file and opens it in the matching DCC.

The file lives for 72 hours by default and then enters a 7-day grace period. We do not train AI on your files. We do not share them with third parties. After grace, the bytes are permanently purged from storage. Read the full policy on privacy.

Common use cases

Send a 3D-printable STL to a friend with a printer
Hand off a model STL to a printing service
Share a dental scan STL with a lab
Pass a photogrammetry STL to a finishing artist

Frequently asked

Binary or ASCII STL? Does it matter?: We do not care. Both formats pass through unchanged.
Will the slicer recognize the file?: Yes. STL is the universal 3D printing format. Every slicer reads it.
What if my STL is over 5 GB?: Reduce mesh decimation in your DCC before exporting, or split the model. 5 GB is the hard cap.
Are units preserved?: STL does not encode units; slicers assume millimeters by convention. We do not modify the file.

Related file types

Looking for size-based pages instead? See the pricing table or read the full FAQ.