Stable file links
Give a file a public URL that stays fixed across replacements.
Use the URL in a message, document, site, app, email, or embed. A replacement becomes the current revision at that same URL.
Everything behind the link.
Upload it once. Change it safely. Deliver it quickly. See how it performs. The address tying it together never has to move.
Explore the platformBring it inBrowser, API, migration, or signed upload.
Keep its historyReplace, roll back, or pin any revision.
Deliver itTransform and serve it from the edge.
See what happenedRequests, latency, bandwidth, and errors.
A file system made for things that change.
SteadyLink separates a file’s permanent identity from the bytes behind it. That one decision makes updates, rollbacks, delivery, and access control much less fragile.
One identity
The public address belongs to the asset, not a temporary upload path.
Every revision
Replace freely, inspect history, pin exact bytes, or roll back without link cleanup.
Policy in the middle
Scanning, signing, transform rules, and delivery controls travel with the asset.
Find the exact thing you need.
Every live part of the platform, in plain language. Search by the job, the file, or the control you need.
34 features
Files and versions
05Version history
Keep each replacement as a separate revision on the same asset.
Pinned revisions
Open or deliver a specific revision when the bytes must never change.
Rollback
Restore an earlier revision without creating a new public address.
Folders and libraries
Organize files into searchable workspace libraries.
Uploads and ingest
04Dashboard uploads
Upload files from the browser and publish them to a workspace.
Direct API uploads
Create and commit uploads from an application or backend.
Authorized uploads
Send large files through a short-lived upload session without routing them through your application.
Bulk migration tools
Move a local media library in batches of up to 100 files while preserving its folder structure.
Transforms
05Image resizing
Request a width or height through URL parameters.
Example: /a/launch?w=1200
Format conversion
Serve modern image formats such as WebP and AVIF from an original.
Example: /a/launch?w=1200&fm=avif
Transform cache
Reuse generated variants instead of rebuilding them on every request.
Precomputed variants
Prepare frequently requested transforms outside the delivery path.
Smart crop and focal points
Choose a focal point or let SteadyLink find a high-detail crop for every requested size.
Example: /a/launch?w=600&h=400&fit=cover&focus=auto
Security and access
05Malware scanning
Scan every upload before a new file becomes available.
Upload policy
Set size, extension, MIME, HTML, SVG, and PDF rules per bucket.
Private assets
Keep objects out of public delivery until access is authorized.
Signed URLs
Grant time-limited access to a private asset.
Encrypted originals
Protect original file bytes with workspace-controlled encryption at rest.
Delivery
05Global edge delivery
Open files quickly and serve transformed variants through cache-friendly delivery URLs.
Public and signed delivery
Use the same asset model for open and restricted media.
Cache invalidation
Move a stable URL to a new revision without leaving stale bytes behind.
Regional delivery controls
Allow or block delivery by country and see the workspace's active storage region.
Custom delivery domains
Serve assets from a verified hostname after the edge hostname and certificate are active.
Developer tools
05REST API
Create, upload, replace, transform, sign, search, and inspect assets programmatically.
API keys
Authenticate applications without using a personal login session.
Typed SDKs
Use the typed SteadyLink client for uploads, migration, delivery settings, and workspace automation.
Webhooks
Receive signed events at your own endpoint or send readable notifications to Discord, Slack, and Microsoft Teams.
Command line tools
Inspect, upload, replace, migrate, and set focal points from a terminal or CI job.
Teams and operations
05Workspaces
Keep assets, policies, and activity grouped by product or team.
Searchable metadata
Find objects by filename, path, type, and recorded metadata.
Audit history
See who changed an asset, policy, or revision and when it happened.
Usage and delivery metrics
Track uploads, transforms, cache activity, and delivery errors.
SSO and organization controls
Connect an OpenID provider, restrict email domains, and require SSO for one workspace.