Islo

Islo is per-agent isolated cloud sandboxes with enterprise policy controls, from Incredibuild. We compare it in Sandbox providers. It sits mid-pack on every field we score, so the decision comes down to the qualitative columns rather than the numbers.

What is Islo?

Islo — Per-agent isolated cloud sandboxes with enterprise policy controls, from Incredibuild. Islo gives each coding agent its own isolated cloud environment, governed by policies over what the agent may reach — codebases, infrastructure and connected systems. Its capability cells here are transcribed from a competitor's comparison table, which credits it with BYO repos plus a setup script, SSH, Docker in the guest, 24/7 operation, a dedicated IPv4 and full TCP/UDP with your own domain. Nothing on this row is a toolweight measurement, and the fields that table does not cover are left unknown. Built by Incredibuild.

We track it in 1 comparison — Sandbox providers — so every claim below is a cell in a table you can open and check rather than an impression. Across those rosters it sits against 19 other tools, and what follows is where it visibly separates from them.

On the fields we score, Islo does not separate from its roster in either direction — it is neither top nor bottom on anything weighted, and nothing it does is rare enough among its rivals to count as a differentiator. That is a real finding rather than a gap: it usually means a competent generalist, and the decision comes down to the qualitative fields further down this page.

A caveat on the data. Only 5 of the 26 fields we track for Islo carry a value, so treat this profile as partial — an absent red flag is not evidence that there isn't one. Last verified 2026-07-23. Every figure keeps its own provenance — measured by us, claimed by the vendor, inferred, or community-reported — and we would rather print a dash than a guess.

Its nearest neighbour in our data is ascii, and on the fields we score the two are close to indistinguishable — nothing we record separates them by enough to call. If you are choosing between them, the deciding factor is not in this table. Compare them properly.

At a glance
Company
Incredibuild
Fields we track
5 of 26
Last verified
2026-07-23

Islo in Sandbox providers

Ranked against 20 tools across 26 sourced fields. Open the full Sandbox providers table.

The enterprise-shaped entry in this group and the one this source serves worst. Islo's pitch is governance — an isolated environment per agent, with policy over which repos, systems and secrets it can touch — and the competitor's table it appears in has no column for any of that, so the row shows a capable long-running VM and nothing about the thing Islo is actually sold on. Credited with BYO repos, SSH, Docker, a dedicated IPv4 and full TCP/UDP. Not denied snapshots and forking: the chart simply omits Islo from those rows, which is a competitor declining to tick a box rather than a finding, so those cells are unknown here. Verify from Incredibuild's own documentation before shortlisting.

Where it lands in this roster
Root in guest
Yes1st of 20
Inferredverified 2026-07-23source
Custom images
Partial14th of 20
Inferredverified 2026-07-23source
Preview URLs
Partial13th of 19
Inferredverified 2026-07-23source
File up/download
Partial10th of 19
Inferredverified 2026-07-23source

When to use Islo

Islo is the right call in these situations, each one drawn from a field we actually record:

  • Central policy control over what each agent can reach.
  • Enterprise teams that must govern agent identity and access.
  • You are already inside Incredibuild's SDLC platform.

When not to use Islo

Nothing in our data disqualifies Islo on a field we score — it is not bottom of its roster on anything weighted. That is partly a coverage problem: only 5 of 26 fields are filled in, so the absence of a red flag is not evidence that there isn't one. Check the timeline for changes we have logged, and Islo alternatives for what teams move to when it stops fitting.

Tools compared alongside Islo

Everything below shares at least one comparison category with Islo, ordered by how much overlap there is. For the reasoning on each — which fields it wins, which it loses — see Islo alternatives.
box
Persistent Linux VMs with SSH, per-VM IPv4 and disk-level forking, priced flat.
E2B
Open-source Firecracker sandboxes with Python and TypeScript SDKs for AI agents.

Recent Islo changes

We have not logged a dated change for Islo yet. The timeline fills in as pricing moves, features ship and things get deprecated.

Sources and gaps

What we don't know. 21 of the 26 fields we track for Islo are still blank: Cold start, Cold start (claimed), Isolation, Egress control, Max runtime, Persistent FS, Snapshot & fork and GPU, and 13 more. Those render as dashes rather than as zeroes or assumptions, because an empty cell and a bad cell are not the same thing and only one of them is honest. If you know any of these figures and can point at a document, tell us.

Every figure on this page traces back to a document you can open. Where a vendor claims a number we could not reproduce, the cell says so.
  • box.ascii.dev/compareRoot in guest, Custom images, Preview URLs, File up/download · Inferred · verified 2026-07-23
  • islo.devPositioning · Vendor-claimed · verified 2026-07-23