For anyone who's been burned by lock-in

Here's how to leave.
Read it before you start.

S3-compatible, $0 egress. The exit is a documented one-line command, not a renegotiation. You can verify the way out before you ever commit.

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Every vendor says "no lock-in." Few will show you the exit.

If you've been burned before, the claim isn't enough — you want to see the way out before you put data in. With most providers, you only discover the real exit cost when you try to leave.

Egress is the lock

Leaving 100 TB costs $9,216 on AWS.

At $0.09/GB internet egress, the bill to move data out scales with how valuable your dataset has become. The lock isn't in the contract — it's in the exit invoice.

Proprietary surface

A non-S3 API means leaving is a rewrite.

When the storage API is bespoke, exiting means re-engineering every integration. The switching cost is engineering time, and it grows with every feature you build on top.

The untested exit

You learn the cost only when you try to go.

Most teams never run the migration until they have to — by then the dataset is large, the egress bill is real, and the 'no lock-in' promise meets the actual number.

The way out is one command and $0.

Here is the migration off Fil One — before you've put anything in. Same S3 API on both ends, no egress charge to move data out.

migrate-off.sh

# Leaving Fil One — the whole migration, one command.
# Same S3 API on both ends; $0 egress means it costs nothing.

rclone sync filone:my-bucket aws:my-bucket --progress

# 'filone' and 'aws' are standard S3 remotes in rclone.conf.
# Point any S3 client the same way — the data is yours to move,
# any time, at no exit cost.

AWS S3 Standard$0.09 / GB$9,216

Google Cloud$0.08–$0.12 / GB$9,831

Azure Blob (Hot)up to $0.087 / GB$7,602

Fil One$0$0

Public US rate cards, Q2 2026. AWS: 102,400 GB × $0.09 = $9,216. GCP tiered (10 TB @ $0.12 + 40 @ $0.11 + 50 @ $0.08) = $9,831. Azure tiered = $7,602. Fil One: $0 egress.

Portable by default, provable on day one.

Full S3 parity

Standard S3 API. The tools that read and write Fil One are the same ones that read and write everywhere else — so the migrate-off command is one you already know.

$0 egress on exit

Moving your data out costs nothing. The exit isn't a renegotiation or a budget request — it's a sync command you can run today, for free.

Flat, predictable cost

$4.99/TB/month while you stay. No egress, no per-request fees — the bill that would normally make leaving expensive doesn't exist.

Integrity-verified data

Every object is verified approximately every 24 hours, so the data you eventually move out is provably the data you put in.

Know the exit before you commit.

$4.99/TB/month — storage only, no egress in or out. Free 1 TB evaluation: put data in, run the migrate-off command, and watch it cost nothing. Then decide.