# Ferr

Official pricing: https://ferr.dev/  
Category: browser · Isolation: container

## Pricing regimes (raw)

- **Cloud browser overage unpublished** (sizes): Cloud browser overage unpublished ? vCPU/? GiB $null/h

## Features

Yes: persistent disk, idle auto-stop, ≥24 h sessions, browser, computer-use API, browser automation API, browser + desktop control, anti-bot stealth, residential IPs, open internet, static egress IP, self-hosting, open source, Python, Node.js

No: snapshots, memory snapshots, fork/clone, pause/resume, volumes, start from your own snapshot, your own Docker/OCI image, full VM (own kernel), Docker inside, nested virtualization, desktop GUI, CAPTCHA solving, preinstalled agents, SSH, public IPv4, HTTPS preview URLs, BYOC, GPU, arm64, Windows, macOS, HTTP method/path egress rules, wake on request, live resize, live fork (no pause), memory fork, automatic snapshots, snapshots on demand, agent harness API, hosted agent API (their own agent), gVisor or VM (no shared kernel), inbound access rules, firewall inside (nftables), secret proxy, secret proxy for any API, extra volumes, shared volumes

Unknown: everything else. Evidence (source + quote) per feature: https://battleships.dev/data/providers/ferr.json → feature_evidence

## Caveats

- Storage, snapshot GiB-month and public IPv 4 prices are not published in the reviewed sources; null is not free.
- No guaranteed vCPU allocation published; browser-hour is not a verified 4-vCPU/8-GiB VM equivalent. The sizes card keeps unknown hardware null; do not coerce it to zero or auto-rank against resource-guaranteed VMs.
- Browser RAM is not published unless a specific mode overrides it.
- Official landing provides pricing/features, but docs.ferr.dev failed DNS and /docs returned 404. These marketing claims were not independently provisioned.
- Open-source and self-host options are advertised; no evidence of zero managed overage. Hourly rate stays null rather than extrapolating $99/1000.
- ferr.dev appears to be a clone or rebrand of Steel.dev's marketing site (ferrum = iron, i.e. 'steel'): Steel's blog slugs appear with 'steel' changed to 'ferr', and the author personas are generic. The product endpoints (docs, app, GitHub, PyPI, Docker) don't exist. Treat it as non-existent until a signup works.

## How this provider charges


As of 2026-09-28. USD unless explicitly stated; public list prices unless a row is marked promotion, historical, or quote-only.

## Regime table

| Regime | When it applies | How billed | Numbers / terms | Source |
|---|---|---|---|---|
| Hobby | Prototype | Monthly allowance | $0, up to 50 hours,3 concurrent | https://ferr.dev/ |
| Pro | Production | Monthly allowance | $99,1,000 hours,50 concurrent | https://ferr.dev/ |
| Scale / dedicated IP | Larger or custom fleet | Quote | Overage, dedicated IP and custom rates unpublished | https://ferr.dev/ |
| Hobby | Account plan | Monthly fee / commitment | $0; concurrency 3; Up to 50 browser hours/month; replay/logs. | https://ferr.dev/ |
| Pro | Account plan | Monthly fee / commitment | $99; concurrency 50; 1,000 included hours; stealth/profiles; dedicated IP add-on price unpublished. | https://ferr.dev/ |
| Scale | Account plan | Monthly fee / commitment | Quote / unknown; concurrency unpublished/custom; Custom volume rate; unlimited concurrency advertised; SLA/self-hosting option. | https://ferr.dev/ |

## Gotchas

- Official landing provides pricing/features, but docs.ferr.dev failed DNS and /docs returned 404. These marketing claims were not independently provisioned.

- Open-source and self-host options are advertised; no evidence of zero managed overage. Hourly rate stays null rather than extrapolating $99/1000.

- Storage, snapshot GiB-month and public IPv 4 prices are not published in the reviewed sources; null is not free.

- No guaranteed vCPU allocation published; browser-hour is not a verified 4-vCPU/8-GiB VM equivalent. The sizes card keeps unknown hardware null; do not coerce it to zero or auto-rank against resource-guaranteed VMs.

- Browser RAM is not published unless a specific mode overrides it.

## Browser and desktop dimensions

```json
{
  "hour_usd": null,
  "included_hours": {
    "Hobby": 50,
    "Pro": 1000
  },
  "proxy_residential_gb_usd": null,
  "proxy_datacenter_gb_usd": null,
  "captcha_solve_usd": null,
  "stealth_surcharge_usd": null,
  "recording_storage_gib_month_usd": null,
  "recording_retention": null,
  "persistent_profiles": true,
  "resolution": null,
  "gpu_desktops": null,
  "os_options": [],
  "browsers": [
    "Cloud browser exposed through CDP"
  ]
}
```

## Worked example

Requested: 4 vCPU / 8 GiB; 50 concurrent × 8 hours/day × 22 days = **8,800 runtime hours**, 1,100 eight-hour starts if recreated daily; 30% CPU; 50 GiB-month snapshots; 100 GiB egress.

50 concurrency fits Pro, but 8,800 hours exceed 1,000 included. Overage price is unknown, so $99 is only the entry fee, not a bill. Network/proxy, CAPTCHA, recording storage, OS and 4/8 hardware unknown.

## Sources

- https://ferr.dev/

- https://docs.ferr.dev

- https://ferr.dev/docs