Mezmo (formerly LogDNA) review: observability and log telemetry pipeline platform. See features, usage-based pricing, pros, cons, and top alternatives for 2026.
Mezmo, formerly known as LogDNA, is an observability platform centered on log management and telemetry data pipelines. Founded in 2014 by Christopher Nguyen and Lee Liu and backed by Y Combinator, the San Jose-based company rebranded from LogDNA to Mezmo to reflect its expansion from a log aggregation tool into a broader observability pipeline platform.
A notable milestone in the company's history was its 2018 partnership with IBM, under which it became the sole logging provider for IBM Cloud, a strong enterprise validation of the platform's reliability at scale.
Mezmo ingests log and event data from applications, infrastructure, and cloud services, then lets teams parse, filter, redact, and transform that data before it reaches downstream storage or analytics tools. This telemetry pipeline approach is designed to reduce the volume -- and therefore cost -- of data sent to expensive log analytics platforms.
The platform includes real-time Live Tail viewing, automatic and custom log parsing, alerting integrations with Slack and PagerDuty, and log restoration from archived data, alongside role-based access controls for team collaboration.
Mezmo's Community plan is free and offers unlimited real-time Live Tail viewing but no data retention. Paid Self Service plans have a $10 monthly minimum and charge per gigabyte based on retention period, ranging from about $0.80/GB for 3-day retention up to $1.80/GB for 30-day retention (with a $50 minimum on that tier).
Organizations with larger-scale or governance needs can move to a custom Enterprise plan that adds unlimited pipelines, single sign-on, and multi-organization support.
Yes. LogDNA rebranded as Mezmo to reflect its expansion from log aggregation into a broader observability and telemetry pipeline platform.
Yes, the Community plan is free and includes unlimited real-time Live Tail viewing, though it has no data retention.
Paid Self Service plans have a $10 monthly minimum and charge per gigabyte based on retention period, ranging from about $0.80/GB (3-day) to $1.80/GB (30-day retention).
Mezmo was founded as LogDNA in 2014 by Christopher Nguyen and Lee Liu, and went through Y Combinator's Winter 2015 batch.
Mezmo is used for centralized log management, observability, and telemetry pipeline processing, supporting application monitoring, DevOps, security, and compliance use cases.
Mezmo focuses specifically on log management and telemetry pipelines with transparent per-gigabyte pricing, while Datadog and Splunk offer broader observability suites at generally higher enterprise price points.