--- 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: '2026-06-21' 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 **Vendor:** Fluentd **Category:** [Log Analysis Software](https://www.g2.com/categories/log-analysis) **Average Rating:** 4.4/5.0 **Total Reviews:** 15 ## About Fluentd Fluentd is an open source data collector, which lets you unify the data collection and consumption for a better use and understanding of data. ## Fluentd Reviews ### 1. Fluentd gives us flexibility of building data pipeline **Rating:** 5.0/5.0 stars **Reviewed by:** Jazz W. | Chair & Initiator, Mid-Market (51-1000 emp.) **Reviewed Date:** October 30, 2019 **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/ **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 **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. ### 2. I have used Fluentd on real time distributed logging machines hosted on cloud **Rating:** 5.0/5.0 stars **Reviewed by:** Bhalchandra W. | Principal Software Engineer, Information Technology and Services, Mid-Market (51-1000 emp.) **Reviewed Date:** November 07, 2019 **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. **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. **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 ### 3. One of the best Logging tools **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Retail | Mid-Market (51-1000 emp.) **Reviewed Date:** June 18, 2020 **What do you like best about Fluentd?** It is very easy to use and configure this tool **What do you dislike about Fluentd?** It`s hard to figure out from scratch how to use it. **Recommendations to others considering Fluentd:** If you have a choice of logging tools you should definitely choose the FluentD **What problems is Fluentd solving and how is that benefiting you?** We are sending lot of logs. This is very scalable tool. ### 4. Light log forwarder **Rating:** 4.0/5.0 stars **Reviewed by:** Rahul A. | DevOps Engineer, Mid-Market (51-1000 emp.) **Reviewed Date:** January 18, 2020 **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 **What do you dislike about Fluentd?** Inability to parse large log lines example Json logs having large exceptions and multiline logs. **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. **What problems is Fluentd solving and how is that benefiting you?** Sending 250 gb logs per day in a microservices architecture. ### 5. Used Fluentd to collect Kafka steams coming from different other internal projects. **Rating:** 4.0/5.0 stars **Reviewed by:** Harpreet S. | Member Of Technical Staff 2, Information Technology and Services, Enterprise (> 1000 emp.) **Reviewed Date:** November 03, 2019 **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. **What do you dislike about Fluentd?** As we used this tool for internal project so i do not find any problems in this tool. **Recommendations to others considering Fluentd:** Best log management tool when integrated with other tools like Kafka. **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 . ### 6. I am regularly using fluentd since october of 2015 **Rating:** 3.5/5.0 stars **Reviewed by:** Vladyslav R. | Enterprise (> 1000 emp.) **Reviewed Date:** October 30, 2019 **What do you like best about Fluentd?** I like the possibility to trigger and control the commands (processes) inside the fluentd configuration **What do you dislike about Fluentd?** To use other commands to delete old log files during log rotation **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 **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 ### 7. I used fluentd as an agent to forward logs to multiple destination e.g elastic seach, kafka **Rating:** 5.0/5.0 stars **Reviewed by:** Mukesh B. | SD3, Internet, Enterprise (> 1000 emp.) **Reviewed Date:** October 31, 2019 **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 **What do you dislike about Fluentd?** I only had trouble writing plugin in ruby but it took me little time to learn **What problems is Fluentd solving and how is that benefiting you?** Low forwarder and transformation of logs in desired format ### 8. Logging agent for kubernetes cluster is best match **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Retail | Mid-Market (51-1000 emp.) **Reviewed Date:** November 03, 2019 **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. **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. **What problems is Fluentd solving and how is that benefiting you?** All logs with k8s cluster is collected by fluentd ### 9. Easy shipping logs **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Mid-Market (51-1000 emp.) **Reviewed Date:** November 03, 2019 **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 **What do you dislike about Fluentd?** its a bit bulky on the memory and cpu side **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 ### 10. FluentD is very good tool for log collection and the support from the community is good. **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User in Banking | Enterprise (> 1000 emp.) **Reviewed Date:** October 30, 2019 **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. **What do you dislike about Fluentd?** First time users will face lot of issues while installing the ruby gems. **What problems is Fluentd solving and how is that benefiting you?** Didn't face much issues apart from the collector configuration. ### 11. Fluentd for log analysis **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Food & Beverages | Mid-Market (51-1000 emp.) **Reviewed Date:** November 02, 2019 **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. **What do you dislike about Fluentd?** Fluentd is not working properly based on time/size **What problems is Fluentd solving and how is that benefiting you?** Application logs analysis ### 12. very useful tools **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Computer & Network Security | Mid-Market (51-1000 emp.) **Reviewed Date:** October 30, 2019 **What do you like best about Fluentd?** easy to use , good integration libraries, and distribute logs in orders and topics **What do you dislike about Fluentd?** some time the performance is not good enough to keep up with the pipeline **What problems is Fluentd solving and how is that benefiting you?** useful tools for the projects worked on ### 13. Fluentd is awesome **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Computer Software | Small-Business (50 or fewer emp.) **Reviewed Date:** January 31, 2019 **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 **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. **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. **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 ### 14. Fluentd **Rating:** 4.0/5.0 stars **Reviewed by:** Natasha R. | Group Fitness Instructor, Small-Business (50 or fewer emp.) **Reviewed Date:** May 31, 2018 **What do you like best about Fluentd?** I like how Fluentd is easy to integrate with other sources and programs. Fluentd is also very versatile with how you can use the program to your specific needs. Fluentd also helps save valuable memory space. It also is a quick download and set up to get started. **What do you dislike about Fluentd?** The struggle with any program that is so customizable is the fact that it can make it harder to use and learn. **What problems is Fluentd solving and how is that benefiting you?** Fluentd is helping us stay organized as a company. Fluentd is also saving memory space for us while searching data. ### 15. Dependable event forwarding **Rating:** 3.0/5.0 stars **Reviewed by:** Verified User in E-Learning | Enterprise (> 1000 emp.) **Reviewed Date:** July 17, 2018 **What do you like best about Fluentd?** Fluentd runs stably once installed and we really don't have to think about it very much at all which is an addition by subtraction for our day-to-day activities. **What do you dislike about Fluentd?** We tried to do some load balancing and it seemed a little cumbersome to do. **What problems is Fluentd solving and how is that benefiting you?** We have been able to get events and data into our message queues very effectively. - [View Fluentd pricing details and edition comparison](https://www.g2.com/products/fluentd/reviews?section=pricing&secure%5Bexpires_at%5D=2026-06-24+17%3A59%3A23+-0500&secure%5Bsession_id%5D=45f4ac53-a738-47ab-98ce-6bd152f97813&secure%5Btoken%5D=8275e8605202bf204e83e935ce13817fff6d4b2d3d91488c0529446fe3501eac&format=llm_user) ## Fluentd Features **Data Preparation** - Data Sources - Indexing - Automated Tagging - Data Blending **Analysis** - Metric and Event Data - Search - Alerts **Visualization** - Dashboards **Agentic AI - Log Analysis** - Autonomous Task Execution - Multi-step Planning - Cross-system Integration - Adaptive Learning - Natural Language Interaction - Proactive Assistance - Decision Making ## Top Fluentd Alternatives - [Datadog](https://www.g2.com/products/datadog/reviews) - 4.4/5.0 (708 reviews) - [Graylog](https://www.g2.com/products/graylog/reviews) - 4.4/5.0 (106 reviews) - [Splunk Enterprise](https://www.g2.com/products/splunk-enterprise/reviews) - 4.3/5.0 (414 reviews)