A CodeSizzler productHands-on labs and hackathons on real machines.
HackersDock puts a live VM next to a step-by-step guide, lets trainers approve milestones in real time, ranks teams on a live leaderboard and issues certificates anyone can verify.
- remote protocols in the browser
- RDP · VNC · SSH
- remote protocols in the browser
- plugins or VPNs for learners
- 0
- plugins or VPNs for learners
- single-use VM access tokens
- 60 s
- single-use VM access tokens
- to verify a certificate
- 1 scan
- to verify a certificate
Capabilities
One platform, from first command to certificate
Everything a training day or hackathon needs: environments, oversight, competition and credentials, built to work together.
For learners
Lab Runner
A real machine and a step-by-step guide, side by side.
- Live VM in the browser
- Guide that drives the VM
- Everything they need, one click away
For trainers
Trainer Command Center
See the whole room at once, and step in when it matters.
- Approval queue
- Shadow any VM
- Student activity grid
For hackathons
Milestone Gating & Leaderboard
Turn a lab into a race, without losing quality control.
- Fair scoring
- Speed and penalties
- Live ranking
For everyone
Verifiable E-Certificates
Proof of skill that anyone can check in seconds.
- Issued automatically
- Tamper-evident
- Public verification
How it works
From sign-in to certificate in four steps
- 01
Launch
Learners sign in and land in their lab: a guide on the left, a live machine on the right.
- 02
Build
They follow the steps, send commands straight to the VM and tick off tasks as they go.
- 03
Get approved
At key milestones a trainer reviews the work, shadowing the VM if needed, then approves or sends feedback.
- 04
Get certified
Finishing the lab issues a signed PDF certificate with a QR code anyone can verify.
Built in, not bolted on
Secure by default
Lab machines hold real credentials and certificates carry real weight, so access and integrity are designed into every layer.
- VM connections use single-use tokens that expire in 60 seconds
- Sign-in cookies are HttpOnly and Secure, with rate-limited logins
- Trainer shadowing is read-only, enforced in two places
- Certificates are HMAC-signed, so edited records fail verification
From CodeSizzler
HackersDock is built by CodeSizzler
Designed and engineered by the CodeSizzler team, HackersDock brings browser-based lab environments, trainer workflows, team competition and credentialing together in one platform, so you can run hands-on training without stitching tools together.
Ready to dock in?
Sign in with the account your trainer gave you, or check a certificate.