3586 free and open-source resources across 109 categories https://sazardev.github.io/awesome-free-resources/ 2026-09-27T00:00:00Z seo.mjs https://sazardev.github.io/awesome-free-resources/#cat-ai-ml

77 free resources. Tags: advanced, agents, ai, api, blog, book, c, code.

https://sazardev.github.io/awesome-free-resources/#cat-ai-papers-reading

36 free resources. Tags: advanced, ai, algorithms, architecture, arxiv, books, concepts, distributed.

https://sazardev.github.io/awesome-free-resources/#cat-anatomy

25 free resources. Tags: 3d, anatomy, atlas, data, free, images, must-know, must-read.

https://sazardev.github.io/awesome-free-resources/#cat-android

51 free resources. Tags: android, aosp, architecture, background, blog, build, code, community.

https://sazardev.github.io/awesome-free-resources/#cat-antennas

22 free resources. Tags: amateur, antennas, calculators, code, community, data, free, hardware.

https://sazardev.github.io/awesome-free-resources/#cat-architecture

25 free resources. Tags: adr, android, blog, book, clean-arch, ddd, eaa, eda.

https://sazardev.github.io/awesome-free-resources/#cat-architecture-decisions

20 free resources. Tags: advanced, architecture, case-studies, cloud, databases, decision-making, design, distributed.

https://sazardev.github.io/awesome-free-resources/#cat-astronomy

29 free resources. Tags: astronomy, blog, career, community, cosmology, data, explainer, free.

https://sazardev.github.io/awesome-free-resources/#cat-big-tech-blogs

46 free resources. Tags: analytics, api-design, architecture, blog, cloud, consensus, crdt, data.

https://sazardev.github.io/awesome-free-resources/#cat-biology

20 free resources. Tags: archive, biology, books, community, courses, data, education, explainer.

https://sazardev.github.io/awesome-free-resources/#cat-cs-fundamentals

22 free resources. Tags: algorithms, beginner, book, cheatsheet, code, community, courses, databases.

https://sazardev.github.io/awesome-free-resources/#cat-chemistry

35 free resources. Tags: biology, books, chemistry, community, courses, data, directory, education.

https://sazardev.github.io/awesome-free-resources/#cat-circuits-signals

22 free resources. Tags: advanced, ai, books, community, control, courses, directory, docs.

https://sazardev.github.io/awesome-free-resources/#cat-compilers

27 free resources. Tags: advanced, assembly, blog, book, c, clang, code, compilers.

https://sazardev.github.io/awesome-free-resources/#cat-compute-accelerators

6 free resources. Tags: advanced, ai, cuda, gpu, hardware, learning, must-read, must-use.

https://sazardev.github.io/awesome-free-resources/#cat-computer-architecture

23 free resources. Tags: ai, architecture, books, community, courses, design, docs, embedded.

https://sazardev.github.io/awesome-free-resources/#cat-computer-science

73 free resources. Tags: a11y, advanced, ai, algorithms, architecture, astronomy, beginner, blog.

https://sazardev.github.io/awesome-free-resources/#cat-data-engineering

26 free resources. Tags: blog, books, data, databases, docs, free, internals, must-do.

https://sazardev.github.io/awesome-free-resources/#cat-data-science

53 free resources. Tags: advanced, ai, algorithms, architecture, books, concepts, data, data-structures.

https://sazardev.github.io/awesome-free-resources/#cat-databases

31 free resources. Tags: ai, analytics, blog, databases, design, distributed, docs, essay.

https://sazardev.github.io/awesome-free-resources/#cat-dev-blogs

32 free resources. Tags: ai, architecture, blog, career, classic, craft, culture, data.

https://sazardev.github.io/awesome-free-resources/#cat-devops-infra

119 free resources. Tags: advanced, alerting, analytics, automation, blog, cache, case-studies, cd.

https://sazardev.github.io/awesome-free-resources/#cat-device-repair

13 free resources. Tags: batteries, community, debugging, devices, electronics, free, measurement, must-read.

https://sazardev.github.io/awesome-free-resources/#cat-efficiency-algorithms

23 free resources. Tags: advanced, algorithms, concurrency, cpp, go, javascript, languages, learning.

https://sazardev.github.io/awesome-free-resources/#cat-electricity-power

24 free resources. Tags: blog, books, climate, courses, data, energy, free, grid.

https://sazardev.github.io/awesome-free-resources/#cat-electronics

39 free resources. Tags: beginner, books, community, courses, docs, dsp, electronics, free.

https://sazardev.github.io/awesome-free-resources/#cat-embedded-devices

22 free resources. Tags: beginner, community, courses, docs, embedded, free, language, magazine.

https://sazardev.github.io/awesome-free-resources/#cat-english-dictionaries-corpora

15 free resources. Tags: corpus, data, dictionary, english, etymology, free, history, learning.

https://sazardev.github.io/awesome-free-resources/#cat-english-exercises-practice

16 free resources. Tags: apps, community, courses, english, exercises, feedback, free, grammar.

https://sazardev.github.io/awesome-free-resources/#cat-english-grammar

38 free resources. Tags: advanced, audio, english, exercises, free, grammar, idiom, learning.

https://sazardev.github.io/awesome-free-resources/#cat-english-linguistics-research

15 free resources. Tags: advanced, fun, history, learning, linguistics, must-read, must-try, reference.

https://sazardev.github.io/awesome-free-resources/#cat-english-pronunciation-listening

19 free resources. Tags: advanced, business, courses, english, exercises, free, ipa, linguistics.

https://sazardev.github.io/awesome-free-resources/#cat-english-vocabulary-phrases

25 free resources. Tags: advanced, audio, data, dictionary, english, idiom, learning, linguistics.

https://sazardev.github.io/awesome-free-resources/#cat-english-writing-composition

19 free resources. Tags: advanced, blog, data, english, free, grammar, guides, linguistics.

https://sazardev.github.io/awesome-free-resources/#cat-english-for-academic-purposes

17 free resources. Tags: academic, courses, eap, english, free, learning, linguistics, materials.

https://sazardev.github.io/awesome-free-resources/#cat-flutter

47 free resources. Tags: a11y, advanced, animation, architecture, backend, blog, book, codegen.

https://sazardev.github.io/awesome-free-resources/#cat-formal-methods

21 free resources. Tags: advanced, c, concurrency, formal, formal-methods, free, history, learning.

https://sazardev.github.io/awesome-free-resources/#cat-framework-docs

64 free resources. Tags: angular, api, astro, async, books, ci, codegen, courses.

https://sazardev.github.io/awesome-free-resources/#cat-free-textbooks

45 free resources. Tags: advanced, anatomy, astronomy, biology, books, chemistry, courses, directory.

https://sazardev.github.io/awesome-free-resources/#cat-fun-facts

33 free resources. Tags: ai, archive, blog, books, comics, cs, culture, data.

https://sazardev.github.io/awesome-free-resources/#cat-go

24 free resources. Tags: blog, concurrency, debugging, docs, errors, examples, generics, go.

https://sazardev.github.io/awesome-free-resources/#cat-go-hacking

20 free resources. Tags: advanced, c2, code, code-quality, fuzzing, go, learning, legal.

https://sazardev.github.io/awesome-free-resources/#cat-go-blogs

14 free resources. Tags: blog, case-study, distributed-systems, go, internals, must-read, networking, rust.

https://sazardev.github.io/awesome-free-resources/#cat-go-frameworks

52 free resources. Tags: backend, build, ci, cicd, cli, code, codegen, config.

https://sazardev.github.io/awesome-free-resources/#cat-hacking-pentesting

40 free resources. Tags: advanced, books, code, community, courses, data, debugging, embedded.

https://sazardev.github.io/awesome-free-resources/#cat-hardware-making

30 free resources. Tags: 3d-printing, cad, community, design, devices, docs, electronics, embedded.

https://sazardev.github.io/awesome-free-resources/#cat-health

19 free resources. Tags: courses, data, evidence, exercise, free, guidance, health, journalism.

https://sazardev.github.io/awesome-free-resources/#cat-hydrogen

40 free resources. Tags: chemistry, cryogenics, energy, engineering, hydrogen, industrial, materials, must-read.

https://sazardev.github.io/awesome-free-resources/#cat-influential-tech

33 free resources. Tags: archive, blog, career, community, devops, dhh, docs, free.

https://sazardev.github.io/awesome-free-resources/#cat-keyboard-switches-parts

16 free resources. Tags: advanced, hardware, history, keyboards, keycaps, kicad, learning, must-do.

https://sazardev.github.io/awesome-free-resources/#cat-keyboards-customization

35 free resources. Tags: advanced, community, design, docs, embedded, ergonomic, ergonomics, firmware.

https://sazardev.github.io/awesome-free-resources/#cat-kotlin

30 free resources. Tags: advanced, blog, build, code, community, compilers, compose, concurrency.

https://sazardev.github.io/awesome-free-resources/#cat-llms-models

31 free resources. Tags: advanced, api, apple-silicon, benchmarks, browser, cpp, data, datasets.

https://sazardev.github.io/awesome-free-resources/#cat-language-docs

58 free resources. Tags: 3d, api, c, clojure, compilers, cpp, csharp, css.

https://sazardev.github.io/awesome-free-resources/#cat-linux-unix

95 free resources. Tags: advanced, audio, books, bsd, build, c, cli, code.

https://sazardev.github.io/awesome-free-resources/#cat-low-level-systems

50 free resources. Tags: advanced, architecture, assembly, bpf, c, code, compilers, concurrency.

https://sazardev.github.io/awesome-free-resources/#cat-mathematics

17 free resources. Tags: advanced, algebra, algorithms, analysis, blog, books, calculus, community.

https://sazardev.github.io/awesome-free-resources/#cat-medicine

49 free resources. Tags: anaesthesia, anatomy, archive, cases, clinical, courses, data, docs.

https://sazardev.github.io/awesome-free-resources/#cat-mobile-android-hacking

20 free resources. Tags: advanced, android, code, mobile, must-read, must-try, must-use, official.

https://sazardev.github.io/awesome-free-resources/#cat-muscles

31 free resources. Tags: advanced, anatomy, health, muscle, must-read, physiology, protein, reference.

https://sazardev.github.io/awesome-free-resources/#cat-negotiation-communication

25 free resources. Tags: communication, design, documentation, free, history, leadership, learning, management.

https://sazardev.github.io/awesome-free-resources/#cat-networking

65 free resources. Tags: advanced, api, automation, bgp, books, code, concepts, courses.

https://sazardev.github.io/awesome-free-resources/#cat-news-aggregators

21 free resources. Tags: aggregator, android, blog, community, databases, discovery, flutter, go.

https://sazardev.github.io/awesome-free-resources/#cat-nuclear-physics

77 free resources. Tags: advanced, applications, astrophysics, case-study, data, docs, energy, engineering.

https://sazardev.github.io/awesome-free-resources/#cat-nutrition

30 free resources. Tags: books, data, education, evidence, free, guidance, health, must-know.

https://sazardev.github.io/awesome-free-resources/#cat-omarchy

32 free resources. Tags: ai, automation, beginner, blog, cli, code, config, dev.

https://sazardev.github.io/awesome-free-resources/#cat-pcb-eda

12 free resources. Tags: advanced, code, community, eda, fabrication, free, legal, libraries.

https://sazardev.github.io/awesome-free-resources/#cat-papers-preprints

73 free resources. Tags: access, ai, api, astronomy, atomic, biology, books, chemistry.

https://sazardev.github.io/awesome-free-resources/#cat-particle-physics

20 free resources. Tags: advanced, astronomy, code, community, data, explainer, gravitation, must-know.

https://sazardev.github.io/awesome-free-resources/#cat-performance

11 free resources. Tags: book, databases, debugging, distributed-systems, ebpf, free, linux, must-read.

https://sazardev.github.io/awesome-free-resources/#cat-performance-engineering

23 free resources. Tags: advanced, benchmarking, books, compute, concurrency, cpp, debugging, design.

https://sazardev.github.io/awesome-free-resources/#cat-physics

34 free resources. Tags: advanced, atomic, books, community, computation, courses, education, explainer.

https://sazardev.github.io/awesome-free-resources/#cat-physiology

40 free resources. Tags: health, muscle, must-read, nutrition, physiology, recovery, reference, sports-science.

https://sazardev.github.io/awesome-free-resources/#cat-physiotherapy

19 free resources. Tags: assessment, evidence, exercises, free, must-know, must-read, must-use, open-access.

https://sazardev.github.io/awesome-free-resources/#cat-quantum-atomic

30 free resources. Tags: atomic, books, code, computation, courses, data, education, explainer.

https://sazardev.github.io/awesome-free-resources/#cat-rf-microwave

28 free resources. Tags: adsb, app-notes, aviation, calculators, code, courses, free, hardware.

https://sazardev.github.io/awesome-free-resources/#cat-radio-amateur

36 free resources. Tags: adsb, amateur, aprs, balloons, broadcast, code, community, contesting.

https://sazardev.github.io/awesome-free-resources/#cat-radio-frequencies-bands

34 free resources. Tags: 5g, amateur, aviation, broadcast, cellular, data, frequencies, iot.

https://sazardev.github.io/awesome-free-resources/#cat-research-data

30 free resources. Tags: biology, climate, data, databases, distributed, formats, free, genetics.

https://sazardev.github.io/awesome-free-resources/#cat-reverse-engineering

22 free resources. Tags: advanced, binary, binutils, code, conferences, cpp, debugging, decompiler.

https://sazardev.github.io/awesome-free-resources/#cat-robotics-control

18 free resources. Tags: books, community, control, courses, data, directory, docs, drones.

https://sazardev.github.io/awesome-free-resources/#cat-rust

26 free resources. Tags: advanced, api-design, async, blog, book, cli, code, community.

https://sazardev.github.io/awesome-free-resources/#cat-rust-ecosystem

41 free resources. Tags: architecture, async, blockchain, book, case-study, ci, cli, code.

https://sazardev.github.io/awesome-free-resources/#cat-sdr-radio-hacking

67 free resources. Tags: 5g, advanced, ble, cellular, code, community, decoding, embedded.

https://sazardev.github.io/awesome-free-resources/#cat-satellites-space

15 free resources. Tags: amateur, code, community, competition, data, free, hardware, images.

https://sazardev.github.io/awesome-free-resources/#cat-science

48 free resources. Tags: archive, atomic, beginner, biology, books, computing, courses, critical-thinking.

https://sazardev.github.io/awesome-free-resources/#cat-science-news

23 free resources. Tags: career, chemistry, community, discoveries, education, engineering, images, medicine.

https://sazardev.github.io/awesome-free-resources/#cat-security

21 free resources. Tags: api, architecture, crypto, dependencies, learning, linux, must-do, must-know.

https://sazardev.github.io/awesome-free-resources/#cat-security-hats-teams

19 free resources. Tags: active-directory, blue-team, bug-bounty, c2, career, certification, code, ctf.

https://sazardev.github.io/awesome-free-resources/#cat-self-taught-learning

12 free resources. Tags: algorithms, beginner, books, clojure, courses, erlang, free, functional.

https://sazardev.github.io/awesome-free-resources/#cat-semiconductors-chips

27 free resources. Tags: blog, chips, courses, explainer, free, hardware, history, math.

https://sazardev.github.io/awesome-free-resources/#cat-site-reliability

16 free resources. Tags: architecture, case-studies, concepts, distributed, documentation, essays, learning, metrics.

https://sazardev.github.io/awesome-free-resources/#cat-software-engineering

25 free resources. Tags: algorithms, architecture, blog, book, books, cheatsheet, curriculum, design.

https://sazardev.github.io/awesome-free-resources/#cat-sports-medicine-injuries

24 free resources. Tags: anatomy, free, injury, must-read, must-use, nutrition, physiology, recovery.

https://sazardev.github.io/awesome-free-resources/#cat-sports-nutrition

20 free resources. Tags: biochemistry, health, must-read, must-visit, nutrition, official, reference, sports-science.

https://sazardev.github.io/awesome-free-resources/#cat-sports-science

33 free resources. Tags: analytics, athletics, biomechanics, book, ethics, free, must-read, must-visit.

https://sazardev.github.io/awesome-free-resources/#cat-strength-conditioning

19 free resources. Tags: free, must-read, recovery, reference, research, strength, therapy, training.

https://sazardev.github.io/awesome-free-resources/#cat-tech-leadership-cto

17 free resources. Tags: architecture, career, concepts, craft, decision-making, design, essays, leadership.

https://sazardev.github.io/awesome-free-resources/#cat-tech-pioneers

34 free resources. Tags: ai, blog, cognitive-science, community, compilers, crypto, design, erlang.

https://sazardev.github.io/awesome-free-resources/#cat-technical-writing

21 free resources. Tags: a11y, diagrams, docs, free, hosting, must-have, must-read, must-use.

https://sazardev.github.io/awesome-free-resources/#cat-telecommunications

33 free resources. Tags: advanced, api, cellular, code, concepts, fiber, free, history.

https://sazardev.github.io/awesome-free-resources/#cat-tennis

53 free resources. Tags: analytics, anatomy, biography, biomechanics, coaching, equipment, ethics, history.

https://sazardev.github.io/awesome-free-resources/#cat-test-measurement

12 free resources. Tags: advanced, app-notes, design, electronics, free, hardware, logic-analyser, measurement.

https://sazardev.github.io/awesome-free-resources/#cat-testing

21 free resources. Tags: blog, docs, e2e, free, fuzzing, go, java, javascript.

https://sazardev.github.io/awesome-free-resources/#cat-thermodynamics-heat

106 free resources. Tags: advanced, book, chemistry, constants, course, courses, cryogenics, energy.

https://sazardev.github.io/awesome-free-resources/#cat-tools-productivity

27 free resources. Tags: book, cli, design, diagrams, docs, dx, editor, free.

https://sazardev.github.io/awesome-free-resources/#cat-topic-blogs

46 free resources. Tags: astronomy, atomic, biology, blog, books, chemistry, community, courses.

https://sazardev.github.io/awesome-free-resources/#cat-web-performance

13 free resources. Tags: courses, data, docs, free, http, must-read, must-use, must-watch.

https://sazardev.github.io/awesome-free-resources/#cat-world-war-i-ii

68 free resources. Tags: archive, biography, books, cold-war, computing, courses, data, free.