How does Preflight validate uploaded files?

Preflight validates files in three stages. First, browser-side checks verify file type, size, and dimensions before anything is uploaded. Second, S3 header inspection checks the actual MIME type on arrival. Third, a server-side deep scan decodes and verifies the file for corruption, false MIMEs, and dimension mismatches. The server is always the source of truth.

Do clients need to create an account to upload files?

No. Clients receive a secure link and can upload immediately - no account creation, no login, no friction. The portal works on any device and any browser.

What platforms does Preflight work with?

Preflight is platform-agnostic and works for any agency collecting client assets, regardless of the platform - Shopify, WordPress, custom builds, or any other. It handles logos, images, copy, PDFs, brand guidelines, and any other file type you configure.

How is Preflight different from Google Drive or Dropbox?

Unlike Drive or Dropbox, Preflight enforces file specifications - format, dimensions, size limits - so clients can't submit the wrong thing. It provides a guided, branded portal rather than a generic folder link, and validates every file server-side before it reaches your dashboard.

How much does Preflight cost?

Preflight is free during early access. Sign up to get started - no credit card required.

Preflight - Client Asset Collection for Agencies

// how it works

From request to approved in five steps

Preflight handles the entire asset collection workflow so you spend your time on the work, not the chase.

Build a template

Create a reusable checklist of everything you need - logos, photos, copy, documents - with exact specs for each requirement. Build it once, reuse it every time.

Start a project, get a link

Create a project from your template. Preflight generates a secure client upload link instantly - no login required on your client's end.

Client gets a guided portal

Your client sees an upload portal branded with your agency logo and color. Each file requirement is clearly explained. They know exactly what to submit and what specs to meet.

Three-layer validation catches bad files

Files are validated in the browser, on upload to S3, and again server-side deep scan. Wrong format, bad dimensions, corrupted file - all rejected before they reach your dashboard.

Review everything in one place

Your dashboard shows what's been submitted, what's still missing, and lets you download approved files. You get an email the moment a client finishes uploading - no inbox hunting.

// features

Everything an agency needs for easy handoffs

Built for agency-to-client asset collection - not adapted from generic storage tools.

📋

Reusable templates

Build a template once, brand projects, or redesigns. Reuse it every time. Never rebuild the same checklist again.

🔗

Shareable client links

One link per project. No account creation required for your client. Works on any device, any browser.

✅

Spec enforcement

Set exact requirements per file - format whitelist, dimensions, max size. Clients can't accidentally submit the wrong thing.

🛡️

Server-side validation

Every file is deep scanned on the server regardless of what the client submits. Corrupted, misnamed, or falsely typed files don't make it through.

🎨

Agency branding

Upload your logo, set your brand color. Clients see your agency's brand on the upload portal - not ours.

📬

Completion alerts

Get an email the moment a client finishes uploading. Automatic reminders nudge clients who haven't submitted.

📁

Direct-to-S3 uploads

Files go straight from the client's browser to S3. Fast, scalable, and nothing passes through our servers unnecessarily.

🏢

Multi-client ready

Run multiple projects simultaneously. Each client gets their own isolated, secure upload portal with no cross-contamination.

// triple validation

The right files. Every time.

Preflight validates in three stages, failing fast at each one. By the time a file reaches your dashboard it has passed browser checks, S3 header inspection, and a full deep scan.

No more discovering a corrupted PSD or wrong-dimension image on launch day.

Layer 1

Browser validation

File type whitelist, size limits, and dimension checks run instantly in the client's browser - before anything is uploaded. Fail fast, save time.

Layer 2

S3 header inspection

When the file lands in S3 we read the actual MIME type and size headers. Renamed files with wrong extensions are caught here.

Layer 3

Server deep scan

Every file is decoded and verified server-side. Corruption, false MIMEs, and dimension mismatches are caught and rejected. The server is always the source of truth.

// the dashboard

See everything at a glance

Manage templates, track project status, and download approved files - all in one place.

app.radarcommerce.com / projects

Preflight projects dashboard showing active asset collection projects and their status

Status at a glance

See which projects are complete, in progress, or waiting on clients - without opening each one.

Missing file tracking

Required files that haven't been submitted are flagged clearly so nothing slips through before launch.

One-click download

Download all approved files for a project in one action - no individual file hunting.

app.radarcommerce.com / templates

Preflight template builder showing requirements

Build once, reuse forever

Create a template with all your standard requirements and reuse it over and over.

Per-requirement spec control

Set allowed formats, min/max dimensions, and file size limits on each individual requirement.

upload.radarcommerce.com / abc123

Branded with your agency

Your logo, your brand color. Clients see a professional portal - not a generic upload form.

No login required

Clients click the link and start uploading immediately. Zero friction, zero confusion.

Stop chasing clientsfor the right files.