Source: https://seerepo.com/compare/jaegertracing/jaeger/vs/temporalio/temporal
Markdown source: https://seerepo.com/compare/jaegertracing/jaeger/vs/temporalio/temporal.md
Description: jaeger and temporal share 8 technologies: go.uber.org/zap, go.opentelemetry.io/otel, go.opentelemetry.io/otel/sdk/metric, Prometheus, go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp, github.com/prometheus/client_model, go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc, and go.opentelemetry.io/otel/sdk. Both are written in Go.

# jaeger vs temporal

jaeger and temporal share 8 technologies: go.uber.org/zap, go.opentelemetry.io/otel, go.opentelemetry.io/otel/sdk/metric, Prometheus, go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp, github.com/prometheus/client_model, go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc, and go.opentelemetry.io/otel/sdk. Both are written in Go.

- [jaegertracing/jaeger](https://seerepo.com/r/jaegertracing/jaeger): CNCF Jaeger, a Distributed Tracing Platform
- [temporalio/temporal](https://seerepo.com/r/temporalio/temporal): Temporal service

## What they share and what sets them apart

- In common: go.uber.org/zap, go.opentelemetry.io/otel, go.opentelemetry.io/otel/sdk/metric, Prometheus, go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp, github.com/prometheus/client_model, go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc, go.opentelemetry.io/otel/sdk
- Only in jaeger: net/http, MCP, otelgrpc, go.opentelemetry.io/otel/trace, go.opentelemetry.io/otel/metric, go.opentelemetry.io/otel/exporters/otlp/otlptrace, go.opentelemetry.io/otel/exporters/prometheus, github.com/prometheus/common
- Only in temporal: Gorilla, Postgres, MySQL, SQLite, AWS S3, Google, tablewriter, github.com/aws/aws-sdk-go-v2/credentials, github.com/go-jose/go-jose/v4, golang.org/x/oauth2, OpenTelemetry, github.com/aws/aws-sdk-go-v2, github.com/aws/aws-sdk-go-v2/config, github.com/felixge/httpsnoop, go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc, go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc

## Side by side

| | jaeger | temporal |
|---|---|---|
| Size | 188,919 lines written, 548 code files | 952,127 lines written, 1,359 code files |
| Who writes it | 7.2% of its commits signed by AI. With Claude Code, GitHub Copilot, and Cursor | 2.9% of its commits signed by AI. With Claude Code, Cursor, and GitHub Copilot |
| Activity | Last push November 4, 2026, 4,964 commits, 23,372 stars | Last push November 4, 2026, 10,123 commits, 24,182 stars |
| Tests | 680 test files. 83.4% of its code files have a test that imports them | 1,385 test files. 85.7% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, jaeger or temporal?

temporal, with 952,127 lines written; jaeger has 188,919.

The proof: [temporalio/temporal's code at commit d167000](https://github.com/temporalio/temporal/tree/d167000789d70a4b3750590008e005747e11c6ce)

### Which has more GitHub stars, jaeger or temporal?

temporal, with 24,182 stars; jaeger has 23,372.

The proof: [temporalio/temporal on GitHub](https://github.com/temporalio/temporal)

### Which has more tests, jaeger or temporal?

temporal, with 1,385 test files; jaeger has 680.

The proof: [temporalio/temporal's code at commit d167000](https://github.com/temporalio/temporal/tree/d167000789d70a4b3750590008e005747e11c6ce)

### Which was updated more recently, jaeger or temporal?

Both got their last push on November 4, 2026.

The proof: [jaegertracing/jaeger's commits on GitHub](https://github.com/jaegertracing/jaeger/commits)

### Which has more commits signed by AI, jaeger or temporal?

jaeger: an AI signed 7.2% of its commits, with Claude Code, GitHub Copilot, and Cursor; in temporal, 2.9%.

The proof: [the commits each tool signed in jaegertracing/jaeger](https://seerepo.com/r/jaegertracing/jaeger/ai)

## Sources

- jaegertracing/jaeger: Read on November 4, 2026, at commit d723f91 (https://github.com/jaegertracing/jaeger/tree/d723f91447f29a345c288f37eb8d1ce7807bc0be)
- temporalio/temporal: Read on November 4, 2026, at commit d167000 (https://github.com/temporalio/temporal/tree/d167000789d70a4b3750590008e005747e11c6ce)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.