Ask HN: What Single File Web Apps do you know of?

10•calebm•4mo ago

I'm trying to get a Wikipedia page for Single File Web Apps approved (https://en.wikipedia.org/wiki/Draft:Single_File_Web_Apps), and I'm trying to find good examples of Single File Web Apps (web apps that are just a single HTML file). Please comment if you know of any.

Comments

tene80i•4mo ago

Tiddlywiki!

calebm•4mo ago

Thank you. That's one of the few that I found.

calebm•4mo ago

Also feel free to add them to this list: https://github.com/calebmadrigal/Single-File-Web-Apps (just submit a PR)

al_borland•4mo ago

Adminer

https://www.adminer.org/en/

calebm•4mo ago

I guess this would qualify as a Single File App (though maybe not a Single File Web App).

austin-cheney•4mo ago

This is my current personal project.

https://github.com/prettydiff/webserver

The backend is multiple files but the frontend is a single file SPA. It loads with state restoration and LCP in about 105ms.

anon1395•4mo ago

Copyparty. https://github.com/9001/copyparty

calebm•4mo ago

This is a valid Single File App (though not a Single File Web App)

anon1395•4mo ago

What's the difference? It's going through the web.

calebm•4mo ago

A "web app" must run in a browser (https://en.wikipedia.org/wiki/Web_application).

anon1395•4mo ago

Copyparty runs in a browser...?

calebm•4mo ago

But it has a server component. A Single File Web App is a web app that is fully contained in a single HTML file.

runjake•4mo ago

I like simonw's: https://tools.simonwillison.net/

I vibecode a bunch of similar tools I use, inspired by Simon, and have them stashed where I can get to them.

calebm•4mo ago

Some of these are indeed Single File Web Apps (though a few of them contain links to external js and such, which would disqualify those from being a SFWA).

runjake•4mo ago

Sure, but that stuff could easily be embedded into the file itself. I think the spirit is still there.

calebm•4mo ago

Agreed.

codingdave•4mo ago

If you count the scripts that could be embedded, any React app could be a single file. I don't think that matches the spirit, though.

runjake•4mo ago

Why not, Dave? In fact, a number of my own vibe coded tools are single file React in HTML.

Disclaimer: I am not competent in React. It's what Claude generated by default and I ran with it so I could poke at the code and learn a little more about React.

jermolene•4mo ago

Two more that I've come across:

https://hyperclay.com/ and https://feather.wiki/

Thanks for mentioning TiddlyWiki btw.

calebm•4mo ago

Hyperclay involves a node js server. Feathre.wiki looks like a legit SFWA.

jermolene•4mo ago

Another one I'd forgotten is Wiki On A Stick. It dates from 2006 or so, just after TiddlyWiki's first release

https://stickwiki.sourceforge.net/

brazukadev•4mo ago

I'm surprised nobody mentioned slingcode: https://slingcode.net/

By far the coolest single file web app I've seen.

Do you have a mathematically attractive face?

Code only says what it does

The success of 'natural language programming'

The Scriptovision Super Micro Script video titler is almost a home computer

Discovering the "original" iPhone from 1995 [video]

Psychometric Comparability of LLM-Based Digital Twins

SidePop – track revenue, costs, and overall business health in one place

The Other Markov's Inequality

The Cascading Effects of Repackaged APIs [pdf]

Lightweight and extensible compatibility layer between dataframe libraries

Haskell for all: Beyond agentic coding

Dorsey's Block cutting up to 10% of staff

Show HN: Freenet Lives – Real-Time Decentralized Apps at Scale [video]

In the AI age, 'slow and steady' doesn't win

Administration won't let student deported to Honduras return

How were the NIST ECDSA curve parameters generated? (2023)

AI, networks and Mechanical Turks (2025)

Goto Considered Awesome [video]

Show HN: I Built a Free AI LinkedIn Carousel Generator

Implementing Auto Tiling with Just 5 Tiles

Open Challange (Get all Universities involved

Apple Tried to Tamper Proof AirTag 2 Speakers – I Broke It [video]

Show HN: Isolating AI-generated code from human code | Vibe as a Code

Show HN: More beautiful and usable Hacker News

Toledo Derailment Rescue [video]

War Department Cuts Ties with Harvard University

Show HN: LocalGPT – A local-first AI assistant in Rust with persistent memory

A Bid-Based NFT Advertising Grid

AI readability score for your documentation

NASA Study: Non-Biologic Processes Don't Explain Mars Organics

Do you have a mathematically attractive face?

Code only says what it does

The success of 'natural language programming'

The Scriptovision Super Micro Script video titler is almost a home computer

Discovering the "original" iPhone from 1995 [video]

Psychometric Comparability of LLM-Based Digital Twins

SidePop – track revenue, costs, and overall business health in one place

The Other Markov's Inequality

The Cascading Effects of Repackaged APIs [pdf]

Lightweight and extensible compatibility layer between dataframe libraries

Haskell for all: Beyond agentic coding

Dorsey's Block cutting up to 10% of staff

Show HN: Freenet Lives – Real-Time Decentralized Apps at Scale [video]

In the AI age, 'slow and steady' doesn't win

Administration won't let student deported to Honduras return

How were the NIST ECDSA curve parameters generated? (2023)

AI, networks and Mechanical Turks (2025)

Goto Considered Awesome [video]

Show HN: I Built a Free AI LinkedIn Carousel Generator

Implementing Auto Tiling with Just 5 Tiles

Open Challange (Get all Universities involved

Apple Tried to Tamper Proof AirTag 2 Speakers – I Broke It [video]

Show HN: Isolating AI-generated code from human code | Vibe as a Code

Show HN: More beautiful and usable Hacker News

Toledo Derailment Rescue [video]

War Department Cuts Ties with Harvard University

Show HN: LocalGPT – A local-first AI assistant in Rust with persistent memory

A Bid-Based NFT Advertising Grid

AI readability score for your documentation

NASA Study: Non-Biologic Processes Don't Explain Mars Organics

Ask HN: What Single File Web Apps do you know of?

Comments