Best Developer Utilities Apps in 2026

AI Code Detector

Developer Utilities

Hey HN, I’m Henry, cofounder and CTO at Span ( https://span.app/ ). Today we’re launching AI Code Detector, an AI code detection tool you can try in your browser. The explosion of AI generated code has created some weird problems for engineering orgs. Tools like Cursor and Copilot are

No reviews yet

Browse Internet Infrastructure

Developer Utilities

I'm launching Wirewiki.com today! Wirewiki makes the internet’s hidden infrastructure browsable. I quit my job 5 years ago to scale Nslookup.io. But after reaching 600k monthly users, I hit a ceiling. I couldn't naturally expand beyond DNS because of the domain name. So I went back to the

No reviews yet

Flowcode

Developer Utilities

Hey HN! I’m Gabriel, and I’m excited to share a project I’ve been working on for the last few years. Flowcode is a visual programming platform that tries to combine the best of both worlds (code and visual). Over the years I found myself repeatedly drawing architectures and logic. It was always my d

No reviews yet

GetStack.dev

Developer Utilities

Hi HN! I’ve been working on getstack.dev[1], a tool to help developers track GitHub open-source trends, tech adoption, and repository stacks — updated weekly. About a month ago, I broke my leg. While stuck on the couch, I figured I’d put the downtime to good use and finally build a side project I’d

No reviews yet

ArchiveBox

Developer Utilities

Create HTML & screenshot archives of sites from your bookmarks, browsing history, RSS feeds, or other sources (alternative to Wayback Machine).

No reviews yet

JupyterLab

Developer Utilities

Web-based environment for interactive and reproducible computing.

No reviews yet

Manyfold

Developer Utilities

Digital asset manager for 3d print files; STL, OBJ, 3MF and more. )

No reviews yet

paaster

Developer Utilities

End-to-end encrypted pastebin built with the objective of simplicity. )

No reviews yet

Pbnj

Developer Utilities

I'm sure folks here have seen pastebins a thousand times. There's no innovation left in this space – and that's kind of the point. When I wanted to self-host a pastebin, every option I found was too much. Git-based version control, OAuth, elaborate admin panels. I just wanted somethin

No reviews yet

Replit

Developer Utilities

AI-powered software development platform

No reviews yet

PinSend

Developer Utilities

Hi HN, I built [PinSend]( https://pinsend.app ) — a free web app for instantly sharing text between devices, using a simple 6-character PIN. - No login, no account, no install. - Peer-to-peer WebRTC transfer (no server relay, no cloud). - Cross-platform: works on any modern browser. I buil

No reviews yet

I made a heatmap diff viewer for code reviews

Developer Utilities

0github.com is a pull request viewer that color-codes every diff line/token by how much human attention it probably needs. Unlike PR-review bots, we try to flag not just by "is it a bug?" but by "is it worth a second look?" (examples: hard-coded secret, weird crypto mode, gn

No reviews yet

RSSHub

Developer Utilities

Easy to use, and extensible RSS feed aggregator capable of generating RSS feeds from pretty much everything ranging from social media to university departments.

No reviews yet

Verysmall.site

Developer Utilities

I heard you like vibe coding so I vibe coded a site where you can vibe code sites. I had non-technical relatives who needed a really simple website. I could have built it for them in a couple of hours, but instead I spent a few more hours to solve the more general problem. They want to talk to a tec

No reviews yet

Prettier Email Headers

Developer Utilities

Hi, I'm Barry and I wanted to share this little tool I put together to help us ( https://goodenough.us/ ) better parse email headers as we build Jelly ( https://letsjelly.com/ ). We wanted an easier way to scan email headers when troubleshooting various issues that

No reviews yet

Airplane

Developer Utilities

Internal tooling platform for engineering teams

No reviews yet

Sosse

Developer Utilities

Selenium based search engine and crawler with offline archiving. )

No reviews yet

Mathpad

Developer Utilities

Here's something different than your usual fare: A physical keypad that lets you directly type math! Ever tried typing mathematical equations in your code IDE, email, or on Slack? You might know it can be tricky. Mathpad solves this with dedicated keys for Greek letters, calculus symbols, and m

No reviews yet

Stagewise

Developer Utilities

Hey HN, we're Glenn and Julian, and we're building stagewise ( https://stagewise.io ), a frontend coding agent that inside your app’s dev mode and that makes changes in your local codebase. We’re compatible with any framework and any component library. Think of it like a v0 of Lo

No reviews yet

TinyFeed

Developer Utilities

Generate a static HTML page from a collection of feeds with a simple CLI.

No reviews yet

ChartDB

Developer Utilities

Database diagrams editor that allows you to visualize and design your DB with a single query.

No reviews yet

Chawan TUI web browser

Developer Utilities

A terminal-based web browser in Nim.[1] Has acceptable (YMMV) CSS rendering, some JS support, and inline images (sixel/kitty). It can also use various protocols other than http(s) such as (s)ftp, gopher, gemini, ... Chawan started out as a w3m clone, and the UI still resembles it. However, th

No reviews yet

DoNotNotify

Developer Utilities

Why - I got sick of apps abusing notifications on my Android phone. While the OS does give you the ability to switch off notifications based on channels, most apps either don't use it or abuse it intentionally. In my case, I live in a gated society that uses an app called MyGate to allow visito

No reviews yet

FileGator

Developer Utilities

FileGator is a powerful multi-user file manager with a single page front-end.

No reviews yet

Flipt

Developer Utilities

Feature flag solution with support for multiple data backends (alternative to LaunchDarkly). )

No reviews yet

Build Web Automations via Demonstration

Developer Utilities

Hey HN, We’ve been building browser agents for a while. In production, we kept converging on the same pattern: deterministic scripts for the happy path, agents only for edge cases. So we built Demonstrate Mode. The idea is simple: You perform your workflow once in a remote browser. Notte records the

No reviews yet

OliveTin

Developer Utilities

Web interface for running Linux shell commands. )

No reviews yet

ToolJet

Developer Utilities

Low-code framework to build & deploy internal tools with minimal engineering effort (alternative to Retool and Mendix). )

No reviews yet

Appsmith

Developer Utilities

Stop grappling with data, scouring for the perfect React library, and coding everything from scratch. Build custom software 10X faster with Appsmith.

No reviews yet

Atheos

Developer Utilities

Web-based IDE framework with a small footprint and minimal requirements, continued from Codiad. )

No reviews yet

Zed

Developer Utilities

High-performance multiplayer code editor

No reviews yet

Filestash

Developer Utilities

Web file manager that lets you manage your data anywhere it is located: FTP, SFTP, WebDAV, Git, S3, Minio, Dropbox, or Google Drive.

No reviews yet

CASCII

Developer Utilities

A free, open-source ASCII diagram builder written in vanilla Javascript

No reviews yet

Octobox

Developer Utilities

Take back control of your GitHub Notifications. )

No reviews yet

Pastefy

Developer Utilities

Beautiful, simple and easy to deploy Pastebin with optional client encryption, multitab pastes, an API, a highlighted editor and more. , [Clients](https://github.com/topics/pastefy-addon))

No reviews yet

Retool

Developer Utilities

Build, deploy, and manage internal tools with Retool’s unified engine. Connect to any database, API, or LLM. Leverage AI throughout your business.

No reviews yet

Tolgee

Developer Utilities

Developer & translator friendly web-based localization platform enabling users to translate directly in the app they develop. )

No reviews yet

OmniTools

Developer Utilities

Collection of powerful web-based tools for everyday tasks (coding, manipulating images/videos, PDFs or crunching numbers...). )

No reviews yet

I built a macOS tool for network engineers

Developer Utilities

Hi HN — I’m the developer of NetViews, a macOS utility I built because I wanted better visibility into what was actually happening on my wired and wireless networks. I live in the CLI, but for discovery and ongoing monitoring, I kept bouncing between tools, terminals, and mental context switches. I

No reviews yet

Itsyhome

Developer Utilities

Hey HN! Nick here – developer of Itsyhome, a menu bar app for macOS that gives you control over your whole HomeKit fleet (and very soon Home Assistant). I run 130+ HomeKit devices at home and the Home app was too heavy for quick adjustments. Full HomeKit support, favourites, hidden items, device gro

No reviews yet

Kottster

Developer Utilities

Low-code admin panel that connects to your database and automatically generates pages to view and manage your data.

No reviews yet

LiveCodes

Developer Utilities

Feature-rich client-side code playground for React, Vue, Svelte, Solid, Typescript, Python, Go, Ruby, PHP and 90+ other languages.

No reviews yet

Warp

Developer Utilities

Fast terminal, state-of-the-art agents, and cloud orchestration for the full software development lifecycle.

No reviews yet

Nogic

Developer Utilities

I built Nogic, a VSCode extension currently, because AI tools make code grow faster than developers can build a mental model by jumping between files. Exploring structure visually has been helping me onboard to unfamiliar codebases faster. It’s early and rough, but usable. Would love feedback on whe

No reviews yet

500+ Free Online Tools In One Place

Developer Utilities

I built EveryToolkit.com — a collection of 500+ free online tools across 24+ categories, all in one clean, fast, and ad-supported site. The goal is to make small, everyday utilities accessible from one place — no popups, no clutter. You’ll find: • Developer tools (JSON, JWT, regex, base64, etc.) •

No reviews yet

Opengist

Developer Utilities

Pastebin powered by Git.

No reviews yet

WebDB

Developer Utilities

Efficient database IDE.

No reviews yet

Fig

Developer Utilities

Terminal autocomplete and workflows

No reviews yet