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Category: Programming

Open Source Alternatives

Best Free and Open Source Alternatives to Google Cloud Build

September 23, 2026 Steve Emms Programming

Looking to replace Google Cloud Build? Explore the best free and open source alternatives for CI/CD, container builds and automation.

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UML

OpenPonk – metamodeling platform and modeling workbench

September 23, 2026 Steve Emms GUI, Programming

OpenPonk is a Pharo-based metamodeling platform and modeling workbench supporting UML, BPMN, Petri nets, ER diagrams and other notations.

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4 Best Free and Open Source Perl Linter Tools

September 23, 2026 Eilidih Parris Programming, Roundup

A linter is a tool used in software development to analyze code for potential errors, stylistic issues, and adherence to coding standards.

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8 Best Free and Open Source General Purpose Linter Tools

September 19, 2026 Eilidih Parris Programming, Roundup

A linter is a tool used in software development to analyze code for potential errors, stylistic issues, and adherence to coding standards.

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Best Free and Open Source Scala Linter Tools

September 18, 2026 Steve Emms Programming, Roundup

Discover useful free and open source linters for Scala that help find errors, enforce coding standards, and improve code quality.

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slang – SystemVerilog compiler and language services

September 17, 2026 Steve Emms CLI, Programming

slang is a fast SystemVerilog compiler and analysis tool offering parsing, elaboration, linting, diagnostics, AST access and Python bindings.

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Icarus Verilog – Verilog compiler and simulation system

September 17, 2026 Steve Emms CLI, Programming

Icarus Verilog is a compiler implementation for the Verilog hardware description language

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4 Useful Free and Open Source Code Formatters for C#

September 16, 2026 Steve Emms Programming, Roundup

Explore the best free and open source C# code formatters for consistent, readable source code with less manual formatting.

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Verilator – SystemVerilog simulator and lint system

September 15, 2026 Steve Emms CLI, Programming

Verilator is a SystemVerilog simulator and lint system aimed at high-performance digital design verification.

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svlint – configurable SystemVerilog linter

September 15, 2026 Steve Emms CLI, Programming

svlint is a configurable SystemVerilog linter with selectable rules, bundled rulesets, TOML configuration and editor integration through svls.

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Verible – SystemVerilog parser, linter, formatter and language server

September 15, 2026 Steve Emms CLI, Programming

Verible is a suite of SystemVerilog developer tools providing style linting, formatting, parsing, project analysis and language server support.

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pretty-php – opinionated PHP code formatter

September 14, 2026 Steve Emms CLI, Programming

pretty-php is a PHP code formatter with deterministic output, small diffs, style presets, equivalence checks, and CLI integration.

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WartRemover – flexible Scala code linter

September 14, 2026 Steve Emms CLI, Programming

WartRemover is a flexible Scala linter that uses compiler plugins and configurable warts to reject unsafe, surprising or undesirable code.

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perl-lsp – language server for Perl

September 14, 2026 Steve Emms Programming

perl-lsp is a Perl language server with type inference, completion, navigation, refactoring, diagnostics and command-line analysis tools.

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Scapegoat – static code analysis for Scala

September 14, 2026 Steve Emms CLI, Programming

Scapegoat is a Scala static code analyser that flags bugs, questionable constructs and style problems through configurable compiler inspections.

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Scalafix – refactoring and linting tool for Scala

September 13, 2026 Steve Emms CLI, Programming

Scalafix is a Scala refactoring and linting tool with syntactic and semantic rules for checking, rewriting and modernising source code.

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Coding

Zarn – static security analysis for Perl applications

September 13, 2026 Steve Emms CLI, Programming

Zarn is a lightweight Perl static security analysis tool using AST inspection and taint tracking to identify possible vulnerabilities.

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CloakBin – zero-knowledge encrypted pastebin

September 5, 2026 Steve Emms Programming, Web Apps

CloakBin is a self-hosted zero-knowledge pastebin with client-side encryption, password protection, expiry controls, a CLI and HTTP API.

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JSON Tools

31 Best Free and Open Source JSON Tools

September 4, 2026 Steve Emms Programming, Roundup

JavaScript Object Notation (JSON) is a standard, popular and lightweight data text-oriented format based on JavaScript object syntax to represent structured data.

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Testing Software

27 Best Free and Open Source Test Automation Tools

September 3, 2026 Steve Emms Programming, Roundup

Test automation frameworks are a set of best practices, common tools, and libraries that help quality-assurance testers.

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