{"adoption": {"forks": 209, "observed_at": "2026-08-28T04:05:17.852235+00:00", "stars": 1655}, "canonical_url": "https://ross.abutalabs.com/products/protobuf-es", "card": {"archived": false, "artifact_type": "library", "description": "Protocol Buffers for ECMAScript. The only JavaScript Protobuf library that is fully-compliant with Protobuf conformance tests.", "domain": ["developer-tools", "apis", "web-development"], "enriched": true, "function": ["serialization", "sdk", "parser"], "health_score": 100, "homepage": "https://protobufes.com", "language": "TypeScript", "license": "Apache-2.0", "license_family": "permissive", "maturity": "active", "member_repos": ["bufbuild/protobuf-es"], "name": "bufbuild/protobuf-es", "platform": ["bun", "browser", "cross-platform"], "pushed_at": "2026-08-26T10:35:21+00:00", "repo": "bufbuild/protobuf-es", "stars": 1655, "tags": ["protobuf", "typescript", "code-generation", "esm", "grpc", "connect", "nodejs", "deno", "web-server"], "topics": ["protobuf", "protocol-buffers", "javascript", "protoc-plugin", "schema", "typescipt"], "urls": [], "use_cases": ["serialize protobuf messages to binary in javascript", "generate typescript types from proto files", "parse protobuf binary data in the browser", "convert protobuf messages to and from", "build type-safe rpc clients compatible with grpc", "work with protobuf extensions and custom options in typescript"], "what_it_is": "Protobuf-ES is a Protocol Buffers runtime and protoc plugin for JavaScript and TypeScript, generating idiomatic plain-object messages with full proto2/proto3/Editions support. It passes Protobuf conformance tests with zero failures and works in browsers, Node.js, Deno, and Bun.", "when_to_avoid": ["you need a non-JavaScript/TypeScript language runtime", "your toolchain depends on the legacy google-protobuf CommonJS API", "you only need JSON serialization and do not care about protobuf wire format"], "when_to_choose": ["you want fully spec-compliant protobuf semantics in JavaScript or TypeScript", "you prefer plain object messages and ESM over getter/setter classes and CommonJS", "you need proto2, proto3, and Editions 2024 support including extensions", "you are building Connect or gRPC services with type-safe clients and servers"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/protobuf-es", "repo": "bufbuild/protobuf-es", "role": "main", "score": 98}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:05:17.852235+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T03:44:51.970104+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5060cd79a318cf6193384fdca1a9510914e0f44afd9eadd0abef9a0d9e9c2cef", "fetched_at": "2026-08-28T04:05:17.852235+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bufbuild/protobuf-es"}, {"content_hash": "c1dfd2f421aceb76ad496dcc1f4b089f924a5802acda24904c6607d41c1cded8", "fetched_at": "2026-08-29T11:17:59.071072+00:00", "kind": "homepage", "missing": false, "url": "https://protobufes.com"}, {"content_hash": "242d93b9b72e39dbdf29b096534fc7260a2828af4e938f73430d25239baec24e", "fetched_at": "2026-08-29T11:17:59.080322+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/getting-started"}, {"content_hash": "5b8bd1c2d92912069449e4f860d727c3d308202b3c653adc0985688634b7c7b0", "fetched_at": "2026-08-29T11:17:59.082290+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/generated-code/features"}, {"content_hash": "0967650d72e7019f55b408ffa73b2fc0d80c377c4c1429237797042cbc9c2c5e", "fetched_at": "2026-08-29T11:17:59.084005+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/faq"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:05:17.852235+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T03:44:51.970104+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5060cd79a318cf6193384fdca1a9510914e0f44afd9eadd0abef9a0d9e9c2cef", "fetched_at": "2026-08-28T04:05:17.852235+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bufbuild/protobuf-es"}, {"content_hash": "c1dfd2f421aceb76ad496dcc1f4b089f924a5802acda24904c6607d41c1cded8", "fetched_at": "2026-08-29T11:17:59.071072+00:00", "kind": "homepage", "missing": false, "url": "https://protobufes.com"}, {"content_hash": "242d93b9b72e39dbdf29b096534fc7260a2828af4e938f73430d25239baec24e", "fetched_at": "2026-08-29T11:17:59.080322+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/getting-started"}, {"content_hash": "5b8bd1c2d92912069449e4f860d727c3d308202b3c653adc0985688634b7c7b0", "fetched_at": "2026-08-29T11:17:59.082290+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/generated-code/features"}, {"content_hash": "0967650d72e7019f55b408ffa73b2fc0d80c377c4c1429237797042cbc9c2c5e", "fetched_at": "2026-08-29T11:17:59.084005+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/faq"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T03:44:51.970104+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5060cd79a318cf6193384fdca1a9510914e0f44afd9eadd0abef9a0d9e9c2cef", "fetched_at": "2026-08-28T04:05:17.852235+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bufbuild/protobuf-es"}, {"content_hash": "c1dfd2f421aceb76ad496dcc1f4b089f924a5802acda24904c6607d41c1cded8", "fetched_at": "2026-08-29T11:17:59.071072+00:00", "kind": "homepage", "missing": false, "url": "https://protobufes.com"}, {"content_hash": "242d93b9b72e39dbdf29b096534fc7260a2828af4e938f73430d25239baec24e", "fetched_at": "2026-08-29T11:17:59.080322+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/getting-started"}, {"content_hash": "5b8bd1c2d92912069449e4f860d727c3d308202b3c653adc0985688634b7c7b0", "fetched_at": "2026-08-29T11:17:59.082290+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/generated-code/features"}, {"content_hash": "0967650d72e7019f55b408ffa73b2fc0d80c377c4c1429237797042cbc9c2c5e", "fetched_at": "2026-08-29T11:17:59.084005+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/faq"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:05:17.852235+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:05:17.852235+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:05:17.852235+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T03:44:51.970104+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5060cd79a318cf6193384fdca1a9510914e0f44afd9eadd0abef9a0d9e9c2cef", "fetched_at": "2026-08-28T04:05:17.852235+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bufbuild/protobuf-es"}, {"content_hash": "c1dfd2f421aceb76ad496dcc1f4b089f924a5802acda24904c6607d41c1cded8", "fetched_at": "2026-08-29T11:17:59.071072+00:00", "kind": "homepage", "missing": false, "url": "https://protobufes.com"}, {"content_hash": "242d93b9b72e39dbdf29b096534fc7260a2828af4e938f73430d25239baec24e", "fetched_at": "2026-08-29T11:17:59.080322+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/getting-started"}, {"content_hash": "5b8bd1c2d92912069449e4f860d727c3d308202b3c653adc0985688634b7c7b0", "fetched_at": "2026-08-29T11:17:59.082290+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/generated-code/features"}, {"content_hash": "0967650d72e7019f55b408ffa73b2fc0d80c377c4c1429237797042cbc9c2c5e", "fetched_at": "2026-08-29T11:17:59.084005+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/faq"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:05:17.852235+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:05:17.852235+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T03:44:51.970104+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5060cd79a318cf6193384fdca1a9510914e0f44afd9eadd0abef9a0d9e9c2cef", "fetched_at": "2026-08-28T04:05:17.852235+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bufbuild/protobuf-es"}, {"content_hash": "c1dfd2f421aceb76ad496dcc1f4b089f924a5802acda24904c6607d41c1cded8", "fetched_at": "2026-08-29T11:17:59.071072+00:00", "kind": "homepage", "missing": false, "url": "https://protobufes.com"}, {"content_hash": "242d93b9b72e39dbdf29b096534fc7260a2828af4e938f73430d25239baec24e", "fetched_at": "2026-08-29T11:17:59.080322+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/getting-started"}, {"content_hash": "5b8bd1c2d92912069449e4f860d727c3d308202b3c653adc0985688634b7c7b0", "fetched_at": "2026-08-29T11:17:59.082290+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/generated-code/features"}, {"content_hash": "0967650d72e7019f55b408ffa73b2fc0d80c377c4c1429237797042cbc9c2c5e", "fetched_at": "2026-08-29T11:17:59.084005+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/faq"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:05:17.852235+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:05:17.852235+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:05:17.852235+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T03:44:51.970104+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5060cd79a318cf6193384fdca1a9510914e0f44afd9eadd0abef9a0d9e9c2cef", "fetched_at": "2026-08-28T04:05:17.852235+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bufbuild/protobuf-es"}, {"content_hash": "c1dfd2f421aceb76ad496dcc1f4b089f924a5802acda24904c6607d41c1cded8", "fetched_at": "2026-08-29T11:17:59.071072+00:00", "kind": "homepage", "missing": false, "url": "https://protobufes.com"}, {"content_hash": "242d93b9b72e39dbdf29b096534fc7260a2828af4e938f73430d25239baec24e", "fetched_at": "2026-08-29T11:17:59.080322+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/getting-started"}, {"content_hash": "5b8bd1c2d92912069449e4f860d727c3d308202b3c653adc0985688634b7c7b0", "fetched_at": "2026-08-29T11:17:59.082290+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/generated-code/features"}, {"content_hash": "0967650d72e7019f55b408ffa73b2fc0d80c377c4c1429237797042cbc9c2c5e", "fetched_at": "2026-08-29T11:17:59.084005+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/faq"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:05:17.852235+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:05:17.852235+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T03:44:51.970104+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5060cd79a318cf6193384fdca1a9510914e0f44afd9eadd0abef9a0d9e9c2cef", "fetched_at": "2026-08-28T04:05:17.852235+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bufbuild/protobuf-es"}, {"content_hash": "c1dfd2f421aceb76ad496dcc1f4b089f924a5802acda24904c6607d41c1cded8", "fetched_at": "2026-08-29T11:17:59.071072+00:00", "kind": "homepage", "missing": false, "url": "https://protobufes.com"}, {"content_hash": "242d93b9b72e39dbdf29b096534fc7260a2828af4e938f73430d25239baec24e", "fetched_at": "2026-08-29T11:17:59.080322+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/getting-started"}, {"content_hash": "5b8bd1c2d92912069449e4f860d727c3d308202b3c653adc0985688634b7c7b0", "fetched_at": "2026-08-29T11:17:59.082290+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/generated-code/features"}, {"content_hash": "0967650d72e7019f55b408ffa73b2fc0d80c377c4c1429237797042cbc9c2c5e", "fetched_at": "2026-08-29T11:17:59.084005+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/faq"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T03:44:51.970104+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5060cd79a318cf6193384fdca1a9510914e0f44afd9eadd0abef9a0d9e9c2cef", "fetched_at": "2026-08-28T04:05:17.852235+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bufbuild/protobuf-es"}, {"content_hash": "c1dfd2f421aceb76ad496dcc1f4b089f924a5802acda24904c6607d41c1cded8", "fetched_at": "2026-08-29T11:17:59.071072+00:00", "kind": "homepage", "missing": false, "url": "https://protobufes.com"}, {"content_hash": "242d93b9b72e39dbdf29b096534fc7260a2828af4e938f73430d25239baec24e", "fetched_at": "2026-08-29T11:17:59.080322+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/getting-started"}, {"content_hash": "5b8bd1c2d92912069449e4f860d727c3d308202b3c653adc0985688634b7c7b0", "fetched_at": "2026-08-29T11:17:59.082290+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/generated-code/features"}, {"content_hash": "0967650d72e7019f55b408ffa73b2fc0d80c377c4c1429237797042cbc9c2c5e", "fetched_at": "2026-08-29T11:17:59.084005+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/faq"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T03:44:51.970104+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5060cd79a318cf6193384fdca1a9510914e0f44afd9eadd0abef9a0d9e9c2cef", "fetched_at": "2026-08-28T04:05:17.852235+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bufbuild/protobuf-es"}, {"content_hash": "c1dfd2f421aceb76ad496dcc1f4b089f924a5802acda24904c6607d41c1cded8", "fetched_at": "2026-08-29T11:17:59.071072+00:00", "kind": "homepage", "missing": false, "url": "https://protobufes.com"}, {"content_hash": "242d93b9b72e39dbdf29b096534fc7260a2828af4e938f73430d25239baec24e", "fetched_at": "2026-08-29T11:17:59.080322+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/getting-started"}, {"content_hash": "5b8bd1c2d92912069449e4f860d727c3d308202b3c653adc0985688634b7c7b0", "fetched_at": "2026-08-29T11:17:59.082290+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/generated-code/features"}, {"content_hash": "0967650d72e7019f55b408ffa73b2fc0d80c377c4c1429237797042cbc9c2c5e", "fetched_at": "2026-08-29T11:17:59.084005+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/faq"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T03:44:51.970104+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5060cd79a318cf6193384fdca1a9510914e0f44afd9eadd0abef9a0d9e9c2cef", "fetched_at": "2026-08-28T04:05:17.852235+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bufbuild/protobuf-es"}, {"content_hash": "c1dfd2f421aceb76ad496dcc1f4b089f924a5802acda24904c6607d41c1cded8", "fetched_at": "2026-08-29T11:17:59.071072+00:00", "kind": "homepage", "missing": false, "url": "https://protobufes.com"}, {"content_hash": "242d93b9b72e39dbdf29b096534fc7260a2828af4e938f73430d25239baec24e", "fetched_at": "2026-08-29T11:17:59.080322+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/getting-started"}, {"content_hash": "5b8bd1c2d92912069449e4f860d727c3d308202b3c653adc0985688634b7c7b0", "fetched_at": "2026-08-29T11:17:59.082290+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/generated-code/features"}, {"content_hash": "0967650d72e7019f55b408ffa73b2fc0d80c377c4c1429237797042cbc9c2c5e", "fetched_at": "2026-08-29T11:17:59.084005+00:00", "kind": "site_page", "missing": false, "url": "https://protobufes.com/reference/faq"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 99, "longevity": 100, "rhythm": 97}, "computed_at": "2026-09-02T17:46:02.011165+00:00", "flags": [], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 1633, "days_push": 7, "days_rel": 20, "gap_med": 20, "n_releases_24m": 28}, "score": 98, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}