Hacker ApprovedDepartments

Multitui

Shares rank 9 of 10 sandboxing tools by recommenders

Runs Claude, Codex, Gemini or other terminal tools inside a macOS sandbox without containers, with a UI for adding file access rules.

Runs Claude, Codex, Gemini or other terminal tools inside a macOS sandbox without containers, with a UI for adding file access rules.

7 people gave an opinion

recommend it
7
criticize it
0
approval share
100%
Each figure is one person. RecommendsCriticizes

Recommended in 3 of 13 months

  1. November 2025: not recommended
  2. December 2025: not recommended
  3. January 2026: not recommended
  4. February 2026: recommended
  5. March 2026: recommended
  6. April 2026: not recommended
  7. May 2026: not recommended
  8. June 2026: recommended
  9. July 2026: not recommended
  10. August 2026: not recommended
  11. September 2026: not recommended
  12. October 2026: not recommended
  13. November 2026: not recommended (month in progress)

Why it doesn’t carry the badge

  • 7 people recommend itNeeds 10 or more, not met.
  • Nobody criticizes itNeeds 2 to 1 or better, met.
  • Recommended in 3 of 13 monthsNeeds 4 or more, not met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • Praised as useful and well made

    “this is definitely a useful tool, I'll happily use that in the future”

    Comment from 9 Mar 2026 in “Ask HN: What Are You Working On? (March 2026)”

    “This looks really cool and genuinely useful”

    Comment from 2 Feb 2026 in “Show HN: Multitui – sandbox claude, codex, or any TUI with custom macOS apps”

    “I’m impressed really neat work!”

    Comment from 21 Feb 2026 in “macOS's Little-Known Command-Line Sandboxing Tool”
  • Sandboxes AI coding agents on macOS

    “You can block file access on macOS by running codex in a sandbox with my app”

    Comment from 28 Jun 2026 in “A way to exclude sensitive files issue still open for OpenAI Codex”

    “My app does this on macOS!”

    Comment from 3 Feb 2026 in “Sandboxing AI Agents in Linux”

Other sandboxing tools people recommend

The four most recommended other sandboxing tools, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

Multitui compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
Bubblewrap (bwrap)1093277%12—Approved
Agent Safehouse43296%7—Approved
nono34392%10—Approved
Firejail30683%12—Approved
MultituiThis page70100%3——
See all 10 sandboxing tools, ranked

What people said

9 of the 10 comments that mention it, newest first. Each links to the original comment.

“You can block file access on macOS by running codex in a sandbox with my app”

RecommendsComment from 28 Jun 2026 in “A way to exclude sensitive files issue still open for OpenAI Codex”

“this is definitely a useful tool, I'll happily use that in the future”

RecommendsComment from 9 Mar 2026 in “Ask HN: What Are You Working On? (March 2026)”

“It's highly customizable.”

RecommendsComment from 9 Mar 2026 in “Ask HN: What Are You Working On? (March 2026)”

“Wow, this looks very nice.”

RecommendsComment from 21 Feb 2026 in “macOS's Little-Known Command-Line Sandboxing Tool”

“I’m impressed really neat work!”

RecommendsComment from 21 Feb 2026 in “macOS's Little-Known Command-Line Sandboxing Tool”

“it monitors what is blocked and gives you a way to add a read/write rule from the UI”

RecommendsComment from 4 Feb 2026 in “Show HN: Multitui – sandbox claude/codex/gemini on macOS without containers”

“My app does this on macOS!”

RecommendsComment from 3 Feb 2026 in “Sandboxing AI Agents in Linux”

“This is a really nice tool!”

RecommendsComment from 2 Feb 2026 in “The Codex App”

“This looks really cool and genuinely useful”

RecommendsComment from 2 Feb 2026 in “Show HN: Multitui – sandbox claude, codex, or any TUI with custom macOS apps”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.