# dsherret/ts-ast-viewer

TypeScript AST viewer

Repository: https://github.com/dsherret/ts-ast-viewer
Canonical: https://ross.abutalabs.com/products/ts-ast-viewer
Homepage: https://ts-ast-viewer.com
Language: TypeScript
License: MIT
License Family: permissive
Last push: 2026-08-20T07:51:16+00:00

## Health v2 (maintenance only)
Score: 76/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 35, longevity 100
- inputs: {"age_days": 3232, "days_push": 13, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1360, forks 104 (observed 2026-08-28T04:04:29.923855+00:00)

## What it is
A web application for exploring the TypeScript compiler's abstract syntax tree (AST). It lets users paste TypeScript code and interactively inspect the resulting AST nodes, types, and symbols.

## Use cases
- inspect the TypeScript AST of a code snippet
- learn how the TypeScript compiler parses code
- debug a TypeScript transformation or code generator
- find node kinds and properties when writing ts-morph or compiler API code
- explore syntax tree structure for a given TypeScript version

## When to choose
- you're writing tools on top of the TypeScript compiler API or ts-morph and need to see the AST
- you want to learn or teach how TypeScript parses source code
- you need to inspect AST nodes, types, and symbols interactively in a browser

## When to avoid
- you need a programmatic AST parser library rather than a visual viewer
- you need AST inspection for languages other than TypeScript
- you need offline/CLI batch AST analysis at scale

## Facets
- artifact type: application
- maturity: active
- function: developer-tools, parser, editor, documentation
- domain: developer-tools, parsers, web-development, programming-languages
- platform: browser
- tags: ast, typescript-compiler-api, visualization, learning-tool, web, typescript, deno

## Member repositories
- dsherret/ts-ast-viewer (main) score 76

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:29.923855+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:41:38.691307+00:00, confidence not recorded.
  - readme: https://github.com/dsherret/ts-ast-viewer (fetched 2026-08-28T04:04:29.923855+00:00, sha 97d2fffa2681)
  - homepage: https://ts-ast-viewer.com (fetched 2026-08-29T11:59:44.184381+00:00, sha ce3ee124bb8b)
- Data as of 2026-08-30T08:39:29.467469+00:00.