📟 monitoring

Last9 costs $35/mo.
These cost $0.

8 free alternatives to Last9, checked for license, recent activity and real adoption. Each one tells you the catch, so you can switch with your eyes open.

⚡ Quick Verdict · 2027 Guide

The top-rated free, open-source replacement for Last9 is SigNoz (Open Source Open Source). Across this category, 7 self-hostable tools are available (including SigNoz and OpenObserve). Switching a 5-person team saves up to $2,100/year compared to Last9's $35/mo subscription.

The catch: Requires self-hosting setup, updates, and server maintenance compared to managed Last9.

See the 8 picks ↓

Last9 vs Free Alternatives

Quick side-by-side comparison · $0/mo vs $35/mo

Alternative	Type	License	Where It Runs	Stars	Head-to-Head
SigNoz	open source	Open Source	Self-host	★ 32.5k	Last9 vs SigNoz →
OpenObserve	open source	AGPL-3.0	Self-host	★ 22.9k	Last9 vs OpenObserve →
VictoriaMetrics	open source	Open Source	Self-host	★ 18k	Last9 vs VictoriaMetrics →
HyperDX	open source	Open Source	Self-host	★ 10k	Last9 vs HyperDX →
GreptimeDB	open source	Open Source	Self-host	★ 6.8k	Last9 vs GreptimeDB →
Uptrace	open source	AGPL-3.0	Self-host	★ 4.3k	Last9 vs Uptrace →
Maple	open source	Open Source	Self-host	★ 1.9k	Last9 vs Maple →
Gigapipe	open source	Open Source	Local	★ 1.7k	Last9 vs Gigapipe →

The picks

8 open source · ranked by fit

01
SigNoz
open sourceOpen SourceSelf-host
32.5knov 2026
Comprehensive monitoring and troubleshooting solution for microservices architectures, offering metrics, traces, and logs in a single pane.
The catch vs Last9
Requires self-hosting setup, updates, and server maintenance compared to managed Last9.
Install, platforms & data +
platforms
webself-hosteddocker to self-host
install
Clone https://github.com/signoz/signoz or deploy with Docker Compose
setup
Deploy via Docker or binary release from GitHub and configure environment variables.
your data
All application data and configuration live on your own server or local database.
checked
2026-11-07
Visit signoz.io ↗Source Compare vs Last9 →also replaces 9 other apps →
02
OpenObserve
open sourceAGPL-3.0Self-host
22.9knov 2026
Monitor logs, metrics, and traces with an open-source observability platform. Achieve petabyte scale with 140x lower storage costs and high performance.
The catch vs Last9
It can ingest and search logs cheaply, but you must operate storage and collectors and give up Axiom's managed serverless scaling and polished event-query experience.
Install, platforms & data +
platforms
webself-hosteddocker to self-host
install
Hosted signup, or a single binary/Docker container; Helm plus external services for HA
setup
The easy single-node path still needs collectors and persistent storage; production HA adds Kubernetes, object storage, PostgreSQL, and NATS.
your data
Telemetry is stored as Apache Parquet on local disk or object storage; single-node metadata defaults to SQLite, while HA uses PostgreSQL and NATS.
checked
2026-11-07
Visit openobserve.ai ↗Source Compare vs Last9 →also replaces 14 other apps →
03
VictoriaMetrics
open sourceOpen SourceSelf-host
18knov 2026
Time series database and monitoring platform compatible with Prometheus, handling billions of metrics with lower resource usage than most alternatives.
The catch vs Last9
Requires self-hosting setup, updates, and server maintenance compared to managed Last9.
Install, platforms & data +
platforms
webself-hosteddocker to self-host
install
Clone https://github.com/VictoriaMetrics/VictoriaMetrics or deploy with Docker Compose
setup
Deploy via Docker or binary release from GitHub and configure environment variables.
your data
All application data and configuration live on your own server or local database.
checked
2026-11-07
Visit victoriametrics.com ↗Source Compare vs Last9 →also replaces 4 other apps →
04
HyperDX
open sourceOpen SourceSelf-host
10knov 2026
Open source observability platform unifying session replays, logs, traces, metrics and errors. Fast search, automatic clustering, $0.40/GB pricing.
The catch vs Last9
Requires self-hosting setup, updates, and server maintenance compared to managed Last9.
Install, platforms & data +
platforms
webself-hosteddocker to self-host
install
Clone https://github.com/hyperdxio/hyperdx or deploy with Docker Compose
setup
Deploy via Docker or binary release from GitHub and configure environment variables.
your data
All application data and configuration live on your own server or local database.
checked
2026-11-07
Visit hyperdx.io ↗Source Compare vs Last9 →also replaces 15 other apps →
05
GreptimeDB
open sourceOpen SourceSelf-host
6.8knov 2026
Cloud-native observability database unifying metrics, logs, and traces with sub-second queries, 50x cost reduction, and seamless OpenTelemetry integration.
The catch vs Last9
Requires self-hosting setup, updates, and server maintenance compared to managed Last9.
Install, platforms & data +
platforms
webself-hosteddocker to self-host
install
Clone https://github.com/greptimeteam/greptimedb or deploy with Docker Compose
setup
Deploy via Docker or binary release from GitHub and configure environment variables.
your data
All application data and configuration live on your own server or local database.
checked
2026-11-07
Visit greptime.com ↗Source Compare vs Last9 →also replaces 8 other apps →
06
Uptrace
open sourceAGPL-3.0Self-host
4.3knov 2026
Uptrace is an OpenTelemetry-based platform that integrates traces, metrics, and logs to help monitor and optimize complex distributed systems.
The catch vs Last9
It is a capable OpenTelemetry APM, but it is narrower than the hosted Grafana, Prometheus, Loki, and Tempo ecosystem and carries a multi-database self-hosting burden.
Install, platforms & data +
platforms
webself-hostedself-host, real ops
install
Hosted signup, or Docker Compose with Uptrace, ClickHouse, PostgreSQL, Redis, and an OpenTelemetry Collector
setup
Even the small-team Compose deployment is a multi-database stack, and production operation adds collectors, backups, TLS, retention tuning, and ordered upgrades.
your data
Self-hosted telemetry lives in ClickHouse, metadata in PostgreSQL, and transient cache/session data in Redis; Docker uses persistent named volumes.
checked
2026-11-07
Visit uptrace.dev ↗Source Compare vs Last9 →also replaces 10 other apps →
07
Maple
open sourceOpen SourceSelf-host
1.9knov 2026
Observability platform built on OpenTelemetry and ClickHouse. Collect, visualize, and query distributed traces, logs, and metrics, with an MCP server for AI agent diagnostics.
The catch vs Last9
Requires self-hosting setup, updates, and server maintenance compared to managed Last9.
Install, platforms & data +
platforms
webself-hosteddocker to self-host
install
Clone https://github.com/MapleTechLabs/maple or deploy with Docker Compose
setup
Deploy via Docker or binary release from GitHub and configure environment variables.
your data
All application data and configuration live on your own server or local database.
checked
2026-11-07
Visit maple.dev ↗Source Compare vs Last9 →also replaces 7 other apps →
08
Gigapipe
open sourceOpen SourceLocal
1.7knov 2026
Unified platform for logs, metrics, traces and profiles with native compatibility for popular tools like OpenTelemetry, Prometheus, and Loki. No data silos, no usage limits.
The catch vs Last9
Community-driven open source project without dedicated enterprise SLAs.
Install, platforms & data +
platforms
desktopcross-platformone-click install
install
Clone https://github.com/metrico/gigapipe or deploy with Docker Compose
setup
Download the native package or installer for your operating system.
your data
All application data lives locally on your own machine.
checked
2026-11-07
Visit gigapipe.com ↗Source Compare vs Last9 →also replaces 5 other apps →

Last9 Head-to-Head Comparisons (2027)

Side-by-side trade-off breakdowns · 8 free alternatives

Last9 vs SigNozOpen Source · Self-host →

Last9 vs OpenObserveAGPL-3.0 · Self-host →

Last9 vs VictoriaMetricsOpen Source · Self-host →

Last9 vs HyperDXOpen Source · Self-host →

Last9 vs GreptimeDBOpen Source · Self-host →

Last9 vs UptraceAGPL-3.0 · Self-host →

Last9 vs MapleOpen Source · Self-host →

Last9 vs GigapipeOpen Source · Local →

Frequently Asked Questions

Direct answers · Last9 open-source replacements

What is the best free alternative to Last9?+

The top free alternative to Last9 is SigNoz (open source, Open Source). Comprehensive monitoring and troubleshooting solution for microservices architectures, offering metrics, traces, and logs in a single pane. Other popular Last9 replacements include OpenObserve, VictoriaMetrics, HyperDX.

Can I self-host a free replacement for Last9?+

Yes. Of the 8 free alternatives to Last9, 7 can be self-hosted on your own server or local machine: SigNoz (Open Source), OpenObserve (AGPL-3.0), VictoriaMetrics (Open Source), HyperDX (Open Source), GreptimeDB (Open Source), Uptrace (AGPL-3.0), Maple (Open Source).

How much does switching from Last9 to a free alternative save?+

Last9 starts at $35/month per seat ($420/year). Switching a 5-person team to a free alternative like SigNoz saves $2,100 per year in software subscription fees.

Should I vibe-code or build my own Last9 clone from scratch?+

Our build verdict for Last9 is NO (use a free alternative, save the tokens). Instead of paying recurring SaaS fees for Last9 or rebuilding it from scratch, deploy one of the 8 battle-tested open-source alternatives like SigNoz.

What is the catch when switching from Last9 to SigNoz?+

Requires self-hosting setup, updates, and server maintenance compared to managed Last9.