What’s an extremely useful website most people probably don’t know about?

This page summarizes the projects mentioned and recommended in the original post on /r/AskReddit

SurveyJS - JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor
Keep full control over the data you collect and tailor the form builder’s entire look and feel to your users’ needs. SurveyJS works with React, Angular, Vue 3, and is compatible with any backend or auth system. Learn more.
surveyjs.io
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InfluxDB – Built for High-Performance Time Series Workloads
InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
www.influxdata.com
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  1. savepagenow

    A simple Python wrapper and command-line interface for archive.org’s "Save Page Now" capturing service

    Wayback Machine It lets you look at “snapshots” of websites from the past that people have archived. I found evidence of the fever dream eragon live on there. Nobody believed me when i would tell them about the text-based adventure game i used to play until i found proof lol

  2. SurveyJS

    JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor. Keep full control over the data you collect and tailor the form builder’s entire look and feel to your users’ needs. SurveyJS works with React, Angular, Vue 3, and is compatible with any backend or auth system. Learn more.

    SurveyJS logo
  3. Frontpage

    Discontinued Dynamic ToS;DR CMS, used in our frontpage (by tosdr)

    https://tosdr.org/ summarizes the terms of services for popular sites and shows you what you are legally consenting to when you check the box “I accept…”

  4. sharedrop

    Easy P2P file transfer powered by WebRTC - inspired by Apple AirDrop

    Sharedrop.io is pretty good too. It’s faster than snapdrop and also allow files transfer outside of LAN.

  5. bypass-paywalls-chrome

    Discontinued Bypass Paywalls web browser extension for Chrome and Firefox. [UnavailableForLegalReasons - Repository access blocked]

    If you're using Firefox or Chrome, there's a great extension called Bypass Paywalls that works for NYT and a lot of other sites.

  6. openlibrary

    One webpage for every book ever published!

    Entertainment: Project Gutenberg - Free books The Internet Archive - A non-profit library of millions of free books, movies, software, music, websites, and more OpenLibrary - download out-of-copyright books, borrow in-copyright books LibriVox - Free audio books Podiobooks.com - free audiobooks mostly from self-published authors. Documentary Heaven - Free documentaries TopDocumentaryFilms.com and FreeDocumentary.tv - more free documentaries. Last.fm - Keeps track of your listening habits Songza - Playlists for whatever mood you're in. 8tracks - Another playlist service with playlists created by users. Internet radio created by people, not algorithms. Popcorn Time - /r/PopCornTime Media Hint - Allows for US Netflix and Pandora access for those of us living abroad. Turns out Media Hint are now charging but here is a workaround ZenMate - (Chrome extension) MediaHint alternative. Hola Unblocker - Same as above, allows access to US Netflix, Hulu, Pandora, etc. but be warned. Grooveshark - free music, online radio, streaming. taken down for legal issues Jango - Free music - internet radio that plays what you want, great for those who can't access Pandora. recommended by /u/your_mind_aches Pornhub - free porn, nuff said TBLOP - The big list of porn Thumbzilla - more porn. That Mp3 - Convert YouTube to Mp3. Really simple. Don't click on any ads.

  7. Openstreetmap

    The Rails application that powers OpenStreetMap

    That's just OpenStreetMap

  8. Chocolatey

    Chocolatey - the package manager for Windows

    On a similar note, Chocolatey provides a command line package manager similar to what you find on Linux.

  9. InfluxDB

    InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

    InfluxDB logo
  10. stylegan2-pytorch

    Simplest working implementation of Stylegan2, state of the art generative adversarial network, in Pytorch. Enabling everyone to experience disentanglement

    Generates a new ‘person’ every time you refresh, but it’s just an AI generating fake pictures of people who don’t exist: https://thispersondoesnotexist.com/

  11. CyberChef

    The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis

    CyberChef a web app for encryption, encoding, compression and data analysis.

  12. learnxinyminutes-docs

    Code documentation written as code! How novel and totally my idea!

    https://learnxinyminutes.com/ For all things programming, learn how to write and read programming for 20+ languages.

  13. go-unsplash

    Go Client for the Unsplash API

    unsplash : Tons of free-to-use images of damn near everything.

  14. noclip.website

    A digital museum of video game levels

  15. filedrop

    📲 WebRTC E2E encrypted file transfer - React + node.js

    i also use drop.lol, pretty much the same thing

  16. tron

    Tron

    Also this is for fixing most software issues https://github.com/bmrf/tron

  17. tldraw

    very good whiteboard SDK / infinite canvas SDK

  18. just-install

    Discontinued The simple package installer for Windows

    I prefer Just-install to ninite. Completely free, and a ton of software to pick from. You can create a single executable ninite style, or just run "just-install (program)" from the command line.

  19. magic-wormhole

    get things from one computer to another, safely

    I use magic worm hole. Check it out https://github.com/magic-wormhole/magic-wormhole

  20. AutoHotkey

    AutoHotkey - macro-creation and automation-oriented scripting utility for Windows.

  21. squoosh

    Make images smaller using best-in-class codecs, right in the browser.

    Squoosh.app

  22. web

    The source code for the Standard Ebooks website. (by standardebooks)

    Standard Ebooks makes Gutenberg books look good: https://standardebooks.org

  23. Win10-Initial-Setup-Script

    Discontinued PowerShell script for automation of routine tasks done after fresh installations of Windows 10 / Server 2016 / Server 2019

  24. Debloat-Windows-10

    A Collection of Scripts Which Disable / Remove Windows 10 Features and Apps

  25. Windows10Debloater

    Discontinued Script to remove Windows 10 bloatware.

  26. py4e

    Web site for www.py4e.com and source to the Python 3.0 textbook

  27. LibreTranslate

    Free and Open Source Machine Translation API. Self-hosted, offline capable and easy to setup.

    If you like open source, use Argos: https://libretranslate.com/

  28. wormhole

    an environment for scalable, parallel execution of python scripts in Docker containers (by jlangdev)

    Can't recommend wormhole enough: https://github.com/jlangdev/wormhole

  29. FilePizza

    :pizza: Peer-to-peer file transfers in your browser

    An alternative to this could be file.pizza

  30. speedtest

    Self-hosted Speed Test for HTML5 and more. Easy setup, examples, configurable, mobile friendly. Supports PHP, Node, Multiple servers, and more

  31. CryptPad

    Collaborative office suite, end-to-end encrypted and open-source.

  32. fx-private-relay

    Keep your email safe from hackers and trackers. Make an email alias with 1 click, and keep your address to yourself.

    https://relay.firefox.com is an email proxy where you can generate an email address that will forward to your real email. Handy if you need to supply an email address during a new account registration but you're worried about getting spam.

  33. archiveis

    A simple Python wrapper for the archive.is capturing service

    https://web.archive.org, https://archive.is (currently down since they don't respond to takedown requests), WebCite (too lazy to find the link)

  34. image-super-resolution

    Discontinued 🔎 Super-scale your images and run experiments with Residual Dense and Adversarial Networks.

  35. UpscalerJS

    Enhance Images with Javascript and AI. Increase resolution, retouch, denoise, and more. Open Source, Browser & Node Compatible, MIT License.

  36. video2x

    A machine learning-based video super resolution and frame interpolation framework. Est. Hack the Valley II, 2018.

  37. RegExr

    RegExr is a HTML/JS based tool for creating, testing, and learning about Regular Expressions.

    https://regexr.com/ is a website that helps you code and test you regular expressions live. It also has an easy index of helpful functions along the side. It’s awesome.

  38. monkeytype

    The most customizable typing website with a minimalistic design and a ton of features. Test yourself in various modes, track your progress and improve your speed.

    monkeytype.com

  39. snapdrop

    A Progressive Web App for local file sharing

  40. khan-api

    Discontinued Documentation for (and examples of) using the Khan Academy API

  41. syncthing-android

    Discontinued Wrapper of syncthing for Android. (by syncthing)

  42. Reddit-Enhancement-Suite

    Reddit Enhancement Suite

  43. prey-android-client

    Android client for Prey: reliable device tracking and security tool

  44. lmms

    Cross-platform music production software

  45. KeePass2.x

    unofficial mirror of KeePass2.x source code

  46. calibre

    The official source code repository for the calibre ebook manager

  47. zotero

    Zotero is a free, easy-to-use tool to help you collect, organize, annotate, cite, and share your research sources.

    Also zotero is excellent! https://www.zotero.org

  48. croc

    Easily and securely send things from one computer to another :crocodile: :package:

    Similar and works on windows and is trivial to download and install there (if the person you're sending to is at least capable enough to open up PowerShell) : https://github.com/schollz/croc

  49. Stream

    Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.

    Stream logo
NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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