Compare

Side-by-side comparison

Pick up to four tools and compare adoption, momentum and maintenance at a glance. The crown marks the leader in each row.

Ubiquitous interactive API documentation generated from OpenAPI definitions.

End-to-end type-safe APIs for TypeScript monorepos without schemas or code generation.

High-performance RPC framework over HTTP/2 with Protocol Buffers; the standard for service-to-service calls.

Google's language-neutral binary serialization format and IDL behind gRPC.

Head to head

Metric	Swagger UI	tRPC	gRPC	Protocol Buffers
Stars	29.1k	40.8k	45.4k	72.2k
Weekly downloads	153k	6.8M	n/a	n/a
Download growth	-15%	+40%	n/a	n/a
Popularity score	72/100	84/100	85/100	89/100
Forks	9.2k	1.7k	11.3k	16.4k
Open issues	1.2k	124	1.4k	418
Last commit	5d ago	3d ago	1d ago	today
Latest version	5.34.1	11.28.0	n/a	n/a
License	Apache-2.0	MIT	Apache-2.0	n/a
First released	2011	2020	2014	2014
Signals	Popular	None	Popular	Popular
Listed in	Backend › RPC, gRPC & OpenAPI	Frontend › Data Fetching & API Clients Backend › RPC, gRPC & OpenAPI	Backend › RPC, gRPC & OpenAPI	Backend › RPC, gRPC & OpenAPI

Hover for exact values; switch to log scale for tools of very different sizes. Not shown (no comparable download data): gRPC, Protocol Buffers.

Ubiquitous interactive API documentation generated from OpenAPI definitions.

End-to-end type-safe APIs for TypeScript monorepos without schemas or code generation.

High-performance RPC framework over HTTP/2 with Protocol Buffers; the standard for service-to-service calls.

Google's language-neutral binary serialization format and IDL behind gRPC.

Metric	Swagger UI	tRPC	gRPC	Protocol Buffers
Stars	29.1k	40.8k	45.4k	72.2k
Weekly downloads	153k	6.8M	n/a	n/a
Download growth	-15%	+40%	n/a	n/a
Popularity score	72/100	84/100	85/100	89/100
Forks	9.2k	1.7k	11.3k	16.4k
Open issues	1.2k	124	1.4k	418
Last commit	5d ago	3d ago	1d ago	today
Latest version	5.34.1	11.28.0	n/a	n/a
License	Apache-2.0	MIT	Apache-2.0	n/a
First released	2011	2020	2014	2014
Signals	Popular	None	Popular	Popular
Listed in	Backend › RPC, gRPC & OpenAPI	Frontend › Data Fetching & API Clients Backend › RPC, gRPC & OpenAPI	Backend › RPC, gRPC & OpenAPI	Backend › RPC, gRPC & OpenAPI

Hover for exact values; switch to log scale for tools of very different sizes. Not shown (no comparable download data): gRPC, Protocol Buffers.