DeveloperToolsKit

Reviewed matches are labeled. Other suggestions come from a shared subcategory, use case, source listing or the same category. Compare features and current plans before choosing.

Product
ToolZip Free web-based developer tools and text converters
BestToolsKit BestToolsKit is a completely free tool site
FreeToolkit 100+ free online tools: JSON formatter, Base64 encoder, UUID generator, regex tester, age calculator, color picker, unit converter & more. Fast, private — runs entirely in your browser. No login.
Convertio File Conversion in the Cloud
DevToys A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.
NanoUtil Generate UUIDs, format JSON/XML, create test data, and calculate compound interest. Over 20 free web tools that work offline. No sign-ups or data collection.
SmallSEOTools Do you need effective SEO tools which are 100% free? Check out our SmallSEOtools.com for checking and removing plagiarism, backlinks, tracking keyword positions, and more.
IT Tools IT Tools is a free and open-source collection of handy online tools for devs.

Selected by category and available use-case details. A topic match does not establish equivalent features.

Product
API_TESTER Effortless API testing, directly from your macOS menu bar
BLACKBOX.AI Code smarter, faster — powered by AI.
EntelligenceAI VSCode Extension Review code in your IDE, pre-merge.
fjorj Expert Knowledge API for AI Agents
utilsfor.dev Dev tools
Carbon Astro & Tailwind CSS: Directory Theme

Added to this directory in the past 30 days. Dates refer to the directory listing, not the product launch.

Product
Ordel AI testing agent for web apps, with a free local CLI
OptiSnap Zero-server batch image compression right in your browser.
IKKF Turn everyday AI models into verifiable domain experts
WhatIsMy-IPAddress Check your public IPv6 and IPv4 address instantly

Profiles grouped by topic. This does not confirm an offer, availability or a connection to this profile.

Profile
James NoCode YouTube · 57K subscribers
NoCode AI Builders YouTube · 13K subscribers
NeuSource Startup Minds 🎯 NeuSource के साथ करें अपने नए बिज़नेस की शानदार शुरुआत ⬇️

Shows and channels grouped by topic. A recommendation does not mean this profile was featured or endorsed.

Show
Gareth Pronovost | Build Without Code YouTube · 42K subscribers
PlanetNoCode YouTube · 36K subscribers
Glide YouTube · 31K subscribers

Retold founder accounts from startups in the same category, each linked to the original.

Story
Tailwind UI's $2 million was five months of a commercial product, not a URL typo Adam Wathan's August 2020 essay says Tailwind CSS had about 10 million installs and that Tailwind UI, then about five months old, was about to cross $2 million in revenue, figures he stated himself beside a slug that mis
ScreenshotOne took three years to $10k MRR and eight months to $20k Dmytro Krasun says ScreenshotOne reached $10k monthly recurring revenue in September 2024, almost three years after launch, then $20k in June 2025, and that the second number changed how much more money still drove him.
AJ said Carrd was about $1.2M ARR and he spends time on the product, not campaigns AJ told SaaS Club Carrd was about $100k MRR, about $1.2 million ARR, and that with two people he invests time in the builder rather than in finding ways to market it; he did not, in the sources fetched here, state $2M AR
WP Engine passed $100M ARR after Cohen made thirty people say they would pay $49 Jason Cohen says he did not start WP Engine until 30 people said they will pay $49 a month, 20 of them did, and in January 2018 he reported the company had passed $100 million ARR and closed $250 million from Silver Lake

Subcategories in the same part of the directory, with the number of listed products.