Seating Chart Generator (Random) — Classroom & Tables

Why this seating chart generator?

Two layouts: classroom grid and event tables.
Secure by default: uses crypto.getRandomValues (CSPRNG) with unbiased sampling.
Optional constraints: fixed seats, blocked seats, and avoid-adjacency pairs (best-effort).
Print-friendly and exportable (TSV/CSV/JSON/HTML).

Generate

Create a seating chart, then print, copy, or download results.

Layout RNG mode

Rows Columns

Front

Diagonal adjacency (advanced)

Roster (one per line) Optional: add a group like “Name | Group”. Lines starting with # are ignored.

Trim & remove empty lines

Deduplicate exact duplicate lines

Advanced (constraints & sharing)

Avoid adjacency pairs (A,B per line) Fixed seats (Name @ r,c or Name @ T2-S3)

Blocked seats (grid: r,c per line) Tip: You can also click seats in the result grid to toggle blocked.

Balance groups (best-effort)

Color by group

Front zone rows (grid) Variants

Search quality (1–10)

Prefer front (names) Avoid front (names)

Include roster in URL (not recommended)

Auto regenerate on changes

How do I use it?

Paste a roster, choose layout/options, click Generate, then print or download.

Are names stored or uploaded?

No. Everything runs locally in your browser. URLs are settings-only by default.

How do I specify avoid-adjacency pairs?

In Advanced, add one pair per line as “A,B”. For grid, adjacency is up/down/left/right (diagonal optional).

Can I fix seats for specific people?

Yes. Use “Name @ r,c” for grid or “Name @ T2-S3” for tables in Advanced.

What is seeded mode?

Seeded mode makes results reproducible with the same seed. It is not intended for secrecy.

Any printing tips?

Use landscape if needed, adjust scale, and consider larger rows/columns for readability.