Khan Academy Algorithms khanacademy.org

HackerEarth hackerearth.com

is a commercial platform for sourcing, assessing, interviewing, and upskilling developers.

Grafana grafana.com

graphite dashboard frontend, editor and graph composer.

Metamarkets Druid druid.io

framework for real-time analysis of large datasets.

PostgreSQL postgresql.org

The world's most advanced open source database.

MySQL mysql.com

The world's most popular open source database.

Census getcensus.com

A reverse-ETL tool that let you sync data from your cloud data warehouse to SaaS applications like Salesforce, Marketo, HubSpot, Zendesk, etc. No engineering favors required—just SQL.

FluentD fluentd.org

An open source data collector for unified logging layer.

Apache Beam beam.apache.org

A unified programming model that implements both batch and streaming data processing jobs that run on many execution engines.

Apache Tez tez.apache.org

An application framework which allows for a complex directed-acyclic-graph of tasks for processing data.

Apache Sqoop sqoop.apache.org

A tool designed for efficiently transferring bulk data between Apache Hadoop and structured datastores such as relational databases.

Apache Samza samza.apache.org

A distributed stream processing framework.

OpenTSDB opentsdb.net

distributed time series database on top of HBase.

Apache Oozie oozie.apache.org

A workflow scheduler system to manage Apache Hadoop jobs.

Apache NiFi nifi.apache.org

An easy to use, powerful, and reliable system to process and distribute data.

Apache Mahout mahout.apache.org

An environment for quickly creating scalable performant machine learning applications.

Apache Solr lucene.apache.org

Search platform for Apache Lucene.

Apache Hive hive.apache.org

Data warehouse software facilitates querying and managing large datasets residing in distributed storage.

Apache HBase hbase.apache.org

The Hadoop database, a distributed, scalable, big data store.

Hue gethue.com

web application for interacting with Hadoop.

Apache Drill drill.apache.org

Schema-free SQL Query Engine for Hadoop, NoSQL and Cloud Storage.

Cascading cascading.org

Java based application development platform.

Apache Calcite calcite.apache.org

framework that allows efficient translation of queries involving heterogeneous and federated data.

Azkaban azkaban.github.io

A batch workflow job scheduler created at LinkedIn to run Hadoop jobs. Azkaban resolves the ordering through job dependencies and provides an easy-to-use web user interface to maintain and track your workflows.

Apache Ambari ambari.apache.org

operational framework for Hadoop management.

Langfuse langfuse.com

An open-source LLM engineering platform for tracing, evaluation, prompt management, and metrics. #opensource

Continue continue.dev

Open-source AI code assistant. Connect any model and any context to create custom autocomplete and chat experiences inside the IDE. #opensource

aider aider.chat

AI pair programming in your terminal, supporting multiple LLM providers. #opensource

textlint textlint.github.io

textlint is an open source text linting utility written in JavaScript.

languagetool languagetool.org

Style and grammar checker for 25+ languages. It finds many errors that a simple spell checker cannot detect.

Upsource jetbrains.com

copyright: — Code review tool with static code analysis and code-aware navigation for Java, PHP, JavaScript and Kotlin.

Databunker databunker.org

Databunker is an address book on steroids for storing personal data. GDPR and encryption are out of the box.

Cryptohack cryptohack.org

Fun cryptography challenges.

SQuAD1.0 rajpurkar.github.io

Question answering dataset that can be explored online, and a list of models performing well on that dataset.

Website tensorflow.org

The Unreasonable effectiveness of RNNs karpathy.github.io

, Torch Code, Python Code

Website deeplearning.net

Spark in Action manning.com

New book in the Manning's "in action" family with +400 pages. Starts gently, step-by-step and covers large number of topics. Free excerpt on how to setup Eclipse for Spark application development and how to bootstrap a new application using the provided Maven Archetype. You can…

Machine Learning Course by Andrew Ng (Stanford University) coursera.org

Renown entry-level online class with certificate. Taught by: Andrew Ng, Associate Professor, Stanford University; Chief Scientist, Baidu; Chairman and Co-founder, Coursera.

Git Large File System (LFS) git-lfs.github.com

Replaces large files such as datasets with text pointers inside Git.

Timeline timeline.knightlab.com

Easy-to-make, beautiful timelines.

raw rawgraphs.io

Open source, web-based tool for the visualization of complex data.

plot.ly plot.ly

Easy-to-use web service that allows for rapid creation of complex charts, from heatmaps to histograms. Upload data to create and style charts with Plotly's online spreadsheet. Fork others' plots.

Kaggle kaggle.com

Data Science competitions, datasets and projects.

Naive Bayes en.wikipedia.org

Logistic Regression en.wikipedia.org

Deep Learning deeplearningbook.org

Yet halfway through the book, it contains satisfying math content on how to think about actual deep learning.

Data Stories datastori.es

d3plus d3plus.org

D3's simpler, easier to use cousin. Mostly predefined templates that you can just plug data in.

Teachable Machine teachablemachine.withgoogle.com

Train a computer to recognize your own images, sounds, & poses!