--- 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 ![Rahul A.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Rahul A.") RA Rahul A. DevOps Engineer Mid-Market (51-1000 emp.) 1/18/2020 "Light log forwarder" 4/5 What do you like best about Fluentd? It's resource consumption is very less and provides flexibility to control parsing as well as basic optimization parameters Review collected by and hosted on G2.com. What do you dislike about Fluentd? Inability to parse large log lines example Json logs having large exceptions and multiline logs. Review collected by and hosted on G2.com. Recommendations to others considering Fluentd: Use it if you want to roll out a logging infrastructure that supports simple formatted logs and don't have need for advanced parsing like modifying fields,adding other data to logs. Review collected by and hosted on G2.com. What problems is Fluentd solving and how is that benefiting you? Sending 250 gb logs per day in a microservices architecture. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Harpreet S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Harpreet S.") HS Harpreet S. Member Of Technical Staff 2 Information Technology and Services Enterprise (\> 1000 emp.) 11/3/2019 "Used Fluentd to collect Kafka steams coming from different other internal projects." 4/5 What do you like best about Fluentd? - Reduce cost in terms of development. You need not to write your own connector. - Easier to install and have better documentation so we did not face any difficulty when we started using it. Review collected by and hosted on G2.com. What do you dislike about Fluentd? As we used this tool for internal project so i do not find any problems in this tool. Review collected by and hosted on G2.com. Recommendations to others considering Fluentd: Best log management tool when integrated with other tools like Kafka. Review collected by and hosted on G2.com. What problems is Fluentd solving and how is that benefiting you? Collecting logs coming from different internal projects.As i already mentioned benefits are east configurable , better documentation . Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Vladyslav R.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Vladyslav R.") VR Vladyslav R. Enterprise (\> 1000 emp.) 10/30/2019 "I am regularly using fluentd since october of 2015" 3.5/5 What do you like best about Fluentd? I like the possibility to trigger and control the commands (processes) inside the fluentd configuration Review collected by and hosted on G2.com. What do you dislike about Fluentd? To use other commands to delete old log files during log rotation Review collected by and hosted on G2.com. Recommendations to others considering Fluentd: During the use of fluentd you should implement the own method of log rotation as a process which will be triggered from fluentd configuration Review collected by and hosted on G2.com. What problems is Fluentd solving and how is that benefiting you? Using the fluentd AWS S3 configuration to log storage with good cost-reducing, optimizing the memory and system performance during logs parsing by using fluentd, good interconnection capability with other systems 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 Banking](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Banking") UB Verified User in Banking Enterprise (\> 1000 emp.) 10/30/2019 "FluentD is very good tool for log collection and the support from the community is good." 3.5/5 What do you like best about Fluentd? Best part of fluentD is we can collect the data especially logs with out any data loss and community is very good. Review collected by and hosted on G2.com. What do you dislike about Fluentd? First time users will face lot of issues while installing the ruby gems. Review collected by and hosted on G2.com. What problems is Fluentd solving and how is that benefiting you? Didn't face much issues apart from the collector configuration. Review collected by and hosted on G2.com. Show More Validated ReviewerSource: Seller invite ##### Pricing Pricing details for this product isn’t currently available. Visit the vendor’s website to learn more. 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