The Best Octoparse Alternatives in 2026

Web Scraping FYI explains web scraping technologies, concepts, and techniques in a technical knowledge base.

Heritrix is the Internet Archive’s open-source, extensible web crawler for archival collection.

Brozzler crawls the web through a distributed browser-based crawler project from the Internet Archive.

Markdown Web Browser renders URLs with headless Chrome and returns OCR-backed Markdown with provenance for agents and pipelines.

For Python data preparation, DataPrep offers an open-source low-code library to collect, clean, and visualize data.

App DevTools groups browser-based tools for text, web code, encoding, validation, and data conversion tasks.

Code Beautify offers online tools for formatting, validating, viewing, and converting developer files and data.

Build custom applications and dashboards with Appsmith, a low-code platform that connects to business data.

Devina groups 78 online tools for text, time, data, media, networking, code, and other work.

Big List of Naughty Strings collects unusual input strings that may trigger issues in software handling user data.

Tracy Profiler collects real-time, nanosecond-resolution telemetry and frame performance data.

PipeRider provided code review tools for dbt data and has been superseded by Recce.

This utility converts cURL commands into code for languages including Python and JavaScript.

Generate C# syntax trees from code snippets with RoslynQuoter, using its online controls for parsing and syntax options.

Code snippets, notes, API requests, diagrams, and calculations can be organized in massCode.

CodeImage helps developers organize code snippets and create shareable screenshots of source code.

Devhints collects developer cheat sheets covering tools and languages such as Bash, Go, React, Sass, and Vim.

Cube collects timestamped events and derives metrics, enabling later aggregation such as quantiles and histograms.

Reusable code templates can be published and discovered through BrickHub, a registry for bricks.

Mockium generates fake data from user-defined fields and schemas and can export results in formats such as CSV, SQL, JSON, and XML.

Stan provides software for Bayesian data analysis, including tools for sophisticated statistical modeling.

Apache Hama was a big data and high-performance computing project that has retired.

For data mining research, ELKI provides an open-source Java framework with algorithms and index structures for knowledge discovery.

Beszel monitors servers and containers, showing historical resource data and configurable alerts.