I love software and non software tools that help me in some way. Most tools I use & like are mentioned appropriately in other parts of the wiki.
Gravatar - Attach an image to an email and websites supporting Gravatar will simply pick up the image you specified.
Calendly - Schedule meetings.
Styleguide - Tool to make creating and maintaining style guides easy.
UFree - Sort out what day to meet.
Updwn - See what everybody thinks.
Leetchi - Online money pot for group gifting & personal fundraising.
Paddle - Checkout, subscriptions, licenses, promotions and analytics that work well together.
Git.io - URL shortener by GitHub.
Sourcegraph - Code search and intelligence, self-hosted and scalable.
Observable - Discover insights faster and communicate more effectively with interactive notebooks for data analysis, visualization, and exploration.
Carbon - Create and share beautiful images of your source code.
livegrep - Tool, partially inspired by Google Code Search, for interactive regex search of ~gigabyte-scale source repositories.
webhook - Lightweight incoming webhook server to run shell commands.
Canny - Track feedback to build better products.
EditorConfig - Helps maintain consistent coding styles for multiple developers working on the same project across various editors and IDEs.
Apprise - Push Notifications that work with just about every platform.
Bloaty - Size profiler for binaries.
mdck - Reports broken links found within md files.
Coverr - Beautiful, free videos for your homepage.
Loom - New kind of work communication tool that helps you get your message across through instantly shareable videos.
Habitat - Modern applications with built-in automation.
Toodles - Project management directly from the TODO's in your codebase.
Speedscope - Fast, interactive web-based viewer for performance profiles.
Dependabot - Creates pull requests to keep your dependencies secure and up-to-date.
imgproxy - Fast and secure standalone server for resizing and converting remote images.
Loki - Like Prometheus, but for logs.
HCL - HashiCorp configuration language.
Buttondown - Easiest way to run your newsletter in markdown.
How many people are around - Count the number of people around you 👨👨👦 by monitoring wifi signals 📡.
Confluent - Streaming platform built by the original creators of Apache Kafka.
JournalBook - Private, offline-first personal journal.
AfterClass - New kind of document for futuristic teams.
WriteFreely - Simple, federated blogging platform. Written in Go.
Snap.as - Permanent home for your photos.
Jsonnet - Data templating language.
fastmod - Fast partial replacement for the codemod tool.
showthedocs - Documentation browser that finds the relevant docs for your code.
hack.chat - Minimal, distraction-free chat application.
Seafile - Enterprise file hosting platform with high reliability and performance.
Outline - Read & annotate without distractions.
HelloSign - Most Powerful Platform for Business Agreements.
Catch - Taxes, retirement, health insurance and more — built to work together like they always should have.
Etcher - Flash OS images to SD cards & USB drives, safely and easily.
gosu - Simple Go-based setuid+setgid+setgroups+exec.
parinfer-rust - Infer parentheses for Clojure, Lisp and Scheme.
Glide - Create a mobile app from a Google Sheet in 5 minutes, for free.
Changemap - Involve users and manage features from suggestion to changelog.
wallabag - Self hostable application for saving web pages: Save and classify articles. Read them later. Freely.
Project Iris - Completely decentralized cloud messaging.
yq - Lightweight and portable command-line YAML processor.
Replies - Helps to reduce the effort required to process customer enquiries to a minimum. Numerous functions optimize the entire process - from receiving to resolving the request.
Beehive - Flexible event/agent & automation system with lots of bees.
mrm - Command line tool to help you keep configuration (package.json, .gitignore, .eslintrc, etc.) of your open source projects in sync.
Dark - Holistic programming language, structured editor, and infrastructure, for building backend web services.
Checkly - Monitor the performance and correctness of your API endpoints & vital site transactions from a single, simple dashboard.
Lattice - Performance management and employee engagement.
Memex - Privacy focused extension to annotate, search and organize what you've seen online.
Narrative - Builds brands, websites and products for growth-minded companies.
Forethought - Agatha, A.I. for Customer Support.
Fixmie - Automated code fixes.
Fabric - Platform that helps your mobile team build better apps, understand your users, and grow your business.
Squoosh - Make images smaller using best-in-class codecs, right in the browser.
Mathigon - Smartest textbook in the world.
Versus - Discover more than 7 million comparisons. Smartphones, Cities, Apps, Universities and much more.
envinfo - Generate a report about your development environment for debugging and issue reporting.
Sheetson - Instantly turn any Google Sheet into RESTful API.
Are.na - Save content, create collections, and connect ideas with other people.
Otter - Generate rich notes for meetings, interviews, lectures, and other important voice conversations.
Tettra - Knowledge management system for high-performance teams.
UIBot - Experiment on how far one could automate the generation of visual designs, what kinds of advantages it would lead to and what issues one would face.
Response - Monzo's real-time incident response and reporting tool.
rclone - Command line program to sync files and directories to and from different cloud storage providers.
Pandoc - Universal markup converter.
fswatch - File change monitor that receives notifications when the contents of the specified files or directories are modified.
UserMirror - Reliable services to build privacy-first systems.
Vector - High-Performance, Logs, Metrics, & Events Router.
Happy Scribe - Video & Audio to Text in minutes.
Fireworq - Lightweight, high-performance, language-independent job queue system.
Stripe CLI - Command-line tool for Stripe.
watchman - Watches files and records, or triggers actions, when they change.
watchexec - Executes commands in response to file modifications.
silicon - Create beautiful image of your source code.
transfer.sh - Easy and fast file sharing from the command-line.
Kythe - Pluggable, (mostly) language-agnostic ecosystem for building tools that work with code.
StackSnippet - Aims to combine the preciseness of Google Search with Stack Overflow's vast reservoir of helpful code snippets.
fio - Flexible I/O Tester.
Scratch your own itch.
Stand on the shoulders of giants.
Solve for the 80 % use case.
Make it easy to adopt/delete.