--- title: Fluentd Reviews meta\_title: 'Fluentd Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter 15 reviews by the users' company size, role or industry to find out how Fluentd works for a business like yours. aggregate\_rating: rating\_value: 4.4 review\_count: 15 scale: '5' date\_modified: '2026-08-09' parent\_category: name: "DevSecOps\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t" url: https://www.g2.com/categories/devsecops --- # Fluentd Reviews & Product Details Fluentd is an open source data collector, which lets you unify the data collection and consumption for a better use and understanding of data. * * * Seller [Fluentd](https://www.g2.com/sellers/fluentd) Discussions [Fluentd Community](https://www.g2.com/products/fluentd/discuss) Show More ## Value at a Glance Averages based on real user reviews. ### Perceived Cost $$$$$ [ View More Pricing Information ](https://www.g2.com/products/fluentd/pricing) ## Top-Rated Alternatives [ ![Datadog](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Datadog") Datadog 4.4/5(726) ](https://www.g2.com/products/datadog/reviews) [ ![Graylog](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Graylog") Graylog 4.4/5(121) ](https://www.g2.com/products/graylog/reviews) [ ![Splunk Enterprise](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Splunk Enterprise") Splunk Enterprise 4.3/5(434) ](https://www.g2.com/products/splunk-enterprise/reviews) [ View All Alternatives ](https://www.g2.com/products/fluentd/competitors/alternatives) ## User Insights Average based on 15 real user reviews. Perceived Cost $$$$$ [Log in to unlock pricing and user insights](/login) ![Jazz W.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Jazz W.") JW Jazz W. Chair & Initiator Mid-Market (51-1000 emp.) 10/30/2019 "Fluentd gives us flexibility of building data pipeline" 5/5 What do you like best about Fluentd? Fluentd provides tones of plugins to collect data from different sources and store in different sinks. You can collect data from log files, databases, and even Kafka streams. You can process log contents with Fluentd and store with JSON format schema in files or even NoSQL. Fluentd is part of the Cloud Native Computing Foundation (CNCF). You can use Fluentd to collect Kubernetes and Docker logs and store in different cloud storage. The community is active. You can find help from Fluentd Slack workspace. If you're interested in collecting data from IoT devices, you can give fluent-bit [1] a try. [1] https://fluentbit.io/ Review collected by and hosted on G2.com. What do you dislike about Fluentd? - Difficult to monitor and debug Fluentd internal issues (ex. out of bufffer). You'll need DataDog [2] or using Prometheus to collect fluentd metrics. - Even there are high availability configurations [3], it still needs extra design to ensure service availability. [2] https://www.datadoghq.com/blog/monitor-fluentd-datadog/ [3] https://docs.fluentd.org/deployment/high-availability Review collected by and hosted on G2.com. What problems is Fluentd solving and how is that benefiting you? We use Fluentd to collect server logs and Kafka stream, then save to cloud storage. It reduce the development time to write our own connectors for different data sources and data sinks. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite ![Bhalchandra W.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Bhalchandra W.") BW Bhalchandra W. Principal Software Engineer Information Technology and Services Mid-Market (51-1000 emp.) 11/7/2019 "I have used Fluentd on real time distributed logging machines hosted on cloud" 5/5 What do you like best about Fluentd? I have used Fluentd on real-time distributed logging machines hosted on cloud to gather raw logs, filter logs, parse raw logs to well-formed JSON, forward all well-formed JSON logs to central fluentd machine (with backup node) central fluentd machine acts as an intermediate node which further forwards logs to the elastic search cluster master node. I had configured Kibanna and Elast alerts on master elastic search node to view and get real time business alerts. Review collected by and hosted on G2.com. What do you dislike about Fluentd? Performance is little show - each Fluentd instance can only process around 18,000 events per second. We can enable multi-process workers to increase throughput, but this may cause problems with plugins that don’t support this feature. Review collected by and hosted on G2.com. What problems is Fluentd solving and how is that benefiting you? 1. In case if any fluentd instance goes down, we can not recover data stored in local fluentd buffer Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Retail](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Retail") CR Verified User in Retail Mid-Market (51-1000 emp.) 6/18/2020 "One of the best Logging tools" 5/5 What do you like best about Fluentd? It is very easy to use and configure this tool Review collected by and hosted on G2.com. What do you dislike about Fluentd? It`s hard to figure out from scratch how to use it. Review collected by and hosted on G2.com. Recommendations to others considering Fluentd: If you have a choice of logging tools you should definitely choose the FluentD Review collected by and hosted on G2.com. What problems is Fluentd solving and how is that benefiting you? We are sending lot of logs. This is very scalable tool. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Mukesh B.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Mukesh B.") MB Mukesh B. SD3 Internet Enterprise (\> 1000 emp.) 10/31/2019 "I used fluentd as an agent to forward logs to multiple destination e.g elastic seach, kafka" 5/5 What do you like best about Fluentd? I liked its reliability, easy to use, plugin model makes it highly extensively and customisable. Good performance with low cpu and memory consumption Review collected by and hosted on G2.com. What do you dislike about Fluentd? I only had trouble writing plugin in ruby but it took me little time to learn Review collected by and hosted on G2.com. What problems is Fluentd solving and how is that benefiting you? Low forwarder and transformation of logs in desired format Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Retail](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Retail") IR Verified User in Retail Mid-Market (51-1000 emp.) 11/3/2019 "Logging agent for kubernetes cluster is best match" 4.5/5 What do you like best about Fluentd? Fluentd is light weight process and when you are setting up an cluster of k8s, it's best to use and logging agent which has less overhead for resources. Review collected by and hosted on G2.com. What do you dislike about Fluentd? There is no dislike but as an improvement suggestion, similar to Prometheus , it should be have capability to collect windows events or application metrics so that with less service one stop solution can be used. Review collected by and hosted on G2.com. What problems is Fluentd solving and how is that benefiting you? All logs with k8s cluster is collected by fluentd Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Information Technology and Services](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Information Technology and Services") AI Verified User in Information Technology and Services Mid-Market (51-1000 emp.) 11/3/2019 "Easy shipping logs" 5/5 What do you like best about Fluentd? using fluentd, one can easily ship host or container logs to multiple configurable destinations pretty quickly and with so many customization options available before sending them, it makes it much more powerful Review collected by and hosted on G2.com. What do you dislike about Fluentd? its a bit bulky on the memory and cpu side Review collected by and hosted on G2.com. What problems is Fluentd solving and how is that benefiting you? it allows visibility by shipping detailed timestamped logs and improves troubleshooting by great margin Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Food & Beverages](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Food & Beverages") UF Verified User in Food & Beverages Mid-Market (51-1000 emp.) 11/2/2019 "Fluentd for log analysis " 5/5 What do you like best about Fluentd? I have used fluentd with s3 and fluentd with graylod this is excellent toll. Fluentd agentd pushes logs to s3 and after used athena service to query over on those logs. Review collected by and hosted on G2.com. What do you dislike about Fluentd? Fluentd is not working properly based on time/size Review collected by and hosted on G2.com. What problems is Fluentd solving and how is that benefiting you? Application logs analysis Review collected by and hosted on G2.com. Show More Validated ReviewerSource: Seller invite ![Verified User in Computer Software](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Computer Software") AC Verified User in Computer Software Small-Business (50 or fewer emp.) 1/31/2019 "Fluentd is awesome" 5/5 What do you like best about Fluentd? The plugin system makes it incredibly easy to configure destinations. They are really extensive and include many amazon destinations like s3, kinesis and cloudwatch. Easy to deploy. Works well with docker. Simply beautiful Review collected by and hosted on G2.com. What do you dislike about Fluentd? The only thing that I didnt like about Fluentd is that to use plugins you have to install them in the DockerFile which means its difficult to get any non standard value out of it without managing your own docker image. Review collected by and hosted on G2.com. Recommendations to others considering Fluentd: Become familiar with the breadth of plugin options early and when deploying in docker realize that you have to install these plugins which means that it is hard to avoid managing your own Fluentd docker image. If you do go down this route I would suggest that you use dockercloud or aws CodeDeploy to manage updates of docker images. Review collected by and hosted on G2.com. What problems is Fluentd solving and how is that benefiting you? We use Fluentd in production to manage all of our application logs. It allows us to simply fan out our logs into multiple destinations for different purposes. For simple log analysis we pipe he data to cloudwatch. For in depth analysis its piped to elastic search and for long term and data lake considerations it is piped to s3. Its incredibly easy to configure, deploy, scale and manage Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ##### Pricing Pricing details for this product isn’t currently available. Visit the vendor’s website to learn more. 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