free tools and websites

Media & downloads

  1. cobalt.tools — download any social media video
  2. justwatch.com — find streaming locations for any content
  3. archive.org — access any old webpage, plus free software
  4. archive.ph — permanently save any webpage
  5. tunefind.com — find songs from any show
  6. radio.garden — listen to any global radio station
  7. musicforprogramming — focus music
  8. mynoise.net — custom focus soundscapes
  9. summarize.tech — summarize any YouTube video
  10. y2mate-style tools aside, cobalt covers most of it

lmage & design

  1. photopea.com — free photoshop in your browser
  2. remove.bg — one-click background removal
  3. cleanup.pictures — erase objects from photos
  4. unscreen.com — free video background removal
  5. squoosh.app — free compression for any image
  6. tinypng.com — image compression that just works
  7. tineye.com — reverse image search
  8. unsplash.com — free high-res stock photos
  9. pexels.com — free stock photos + videos
  10. pixabay.com — free stock images, vectors, music 21. undraw.co — free illustrations you can recolor
  11. heroicons.com — free SVG icons
  12. lucide.dev — clean open-source icon set
  13. coolors.co — color palette generator

PDF & document tools

  1. tinywow.com — 100+ free tools in one place
  2. smallpdf.com — free PDF editing
  3. ilovepdf.com — merge and split PDFs
  4. pdfdrive.com — free PDF downloads (mixed catalog — see note)
  5. pdf24.org — full PDF toolkit, free
  6. sejda.com — browser-based PDF editor

Books, papers & learning

  1. gutenberg.org — 70,000 free classic books
  2. openculture.com — free courses from top universities
  3. libgen.im — millions of free textbooks (grey area — see note)
  4. sci-hub.pub — free research papers (grey area — see note)
  5. annasarchive — search every book ever written (grey area — see note)
  6. standardebooks — beautifully formatted public domain books
  7. coursera.org — audit thousands of university courses free
  8. edx.org — free courses from MIT, Harvard, more
  9. khanacademy.org — free K-12 + college subjects
  10. freecodecamp.org — full dev curriculum, free
  11. theodinproject.com — free full-stack dev path
  12. cs50.harvard — Harvard's intro CS course, free

Research & academic

  1. elicit.com — AI research paper assistant
  2. consensus.com — search scientific consensus
  3. connectedpapers.com — visualize and map research
  4. semanticscholar.org — free academic search
  5. scispace.com — understand any research paper
  6. researchrabbit.ai — discover related papers
  7. scholar.google — academic search engine

Developer tools

  1. regex101.com — instantly test any regular expression
  2. codebeautify.org — cleanly format any code
  3. explainshell.com — understand terminal commands
  4. carbon — turn code into artwork
  5. ray — stunning code screenshots
  6. phindai.org — developer AI search
  7. devdocs.io — every dev doc in one searchable place
  8. caniuse.com — browser support for any web feature
  9. jsonformatter.org — format and validate JSON
  10. transform — convert between data/code formats
  11. crontab.guru — explain any cron expression
  12. shields.io — generate readme badges

Productivity & whiteboarding

  1. excalidraw.com — free hand-drawn charts
  2. tldraw.com — infinite whiteboard in your browser
  3. miro.com — collaborative whiteboard (free tier)
  4. notion.so — free notes/docs/databases
  5. obsidian.md — local-first markdown knowledge base
  6. cryptpad.fr — encrypted google-docs alternative

Privacy & temp tools

  1. temp-mail.org — one-click temporary email
  2. 10minutemail.com — instant temporary email
  3. privnote.com — send self-destructing messages
  4. file.io — share auto-deleting files
  5. accountkiller.com — delete yourself from any website
  6. simplelogin.io — free email aliases
  7. crypt.ee — encrypted notes + photos

Security & checks
75. haveibeenpwned.com — check if you've been hacked
76. virustotal.com — scan any file for malware
77. downdetector.com — check if any website is down
78. urlvoid.com — check if a URL is sketchy
79. whoer.net — see what sites see about you

Utility & misc

  1. wolframalpha — instantly solve any math problem
  2. alternativeto — find free app alternatives
  3. flightradar24 — real-time tracking for any flight
  4. camelcamelcamel — track amazon price history
  5. fast.com — check internet speed
  6. speedtest— bandwidth + latency check
  7. wetransfer — send files up to 2GB free
  8. fakespot — detect fake amazon reviews
  9. exchange-rates — clean currency conversion
  10. timeanddate — meeting planner across timezones
  11. world.taximeter — estimate cab fare anywhere

Writing & content

  1. hemingwayapp — make your writing clearer
  2. languagetool — free grammar checker
  3. deepl — translation that beats google translate
  4. quillbot. — paraphrase + summarize (free tier)
  5. perplexity.ai — AI search with sources
  6. claude.ai — yes, this thing
  7. you.com — AI search + writing
  8. rytr.me — free AI writing (small tier)

Audio & video

  1. audiomass.co — free browser audio editor
  2. clipchamp.com — free in-browser video editor