Alternatives
Products that do what Mephisto – A RAM-only, ad-free disposable email PWA built with React does
Hi HN, I built Mephisto because I was frustrated with the current state of disposable email services—most are riddled with intrusive ads, trackers, and captchas. I wanted a tool that felt like a proper developer utility rather than a spam farm. The stack is React, Vite, and Tailwind. Key architectural decisions: 1. Volatile Memory: The backend writes nothing to disk. Once a session terminates, the data is irretrievable. 2. Client-Side Entropy: The password generator runs locally in the browser; keys are never sent to the server. 3. PWA: It's installable and designed for low latency using…
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2017 · reactpwa.com
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Made this privacy conscious temporary mail extension as a hobby a few years ago as I found a cool domain. I've now revamped the UI, added more domains and created an extension that shows your inbox in your browser (it only asks for permission to read from TemporaryMail.com and not all sites like the other extensions), it's also free from ads (paying the service out of pocket and perhaps adding an upgrade feature later on). What makes this site a bit more unique is that I wrote the email parser from scratch following the RFC (took me 2 months and tons of testing) so it should display all…
2024
- 5MI
Hi HN, TL;DR Memex is a cross-platform desktop app for vibe coding. Think ChatGPT + Claude Code rolled into one. Why we built it: We love chat tools like Perplexity and ChatGPT. We also love coding agents, like in Cursor and Windsurf. We don’t like that web-based app builders are opinionated about tech stack and we can’t run them locally. So, we built Memex to be a chat tool + coding agent that supports any tech stack. What it can do today: Claude Code-like coding. Agentic web search / research. Pre-built templates (e.g. fullstack, iOS, python + modal, etc). Inline data analysis + viz.…
2025 · memex.tech
- 6TA
Over the past few weeks I've been working on a small application to view trending repos on GitHub. I built the PWA[1] with React, Next.js and GraphQL .. but what's interesting is the application is only using React server side, meaning the client side javascript is only a few lines code adding some event listeners and registering a service worker for offline capability. This helped me achieve a perfect google chrome performance audit I learned a ton working on it and would love to talk about it if anyone has any questions! Application Link: https://trends.now.sh Source code on…
2018
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Hey HN I built ImageConverter.dev because I got tired of “free” image converter sites that force uploads, or throttle conversions. So I made a tool that runs 100% client-side — meaning your images never leave your device. It’s built for speed, simplicity, and privacy. What it does Convert images between JPG, PNG, WebP Works offline once loaded (PWA support) How it works It uses the Canvas API and WebAssembly to handle conversions directly in the browser. There’s no upload, no tracking, no server costs, and it’s fast even on mid-range devices. Why I built it I wanted an instant, no-ads,…
Oct 2025 · imageconverter.dev
- 9TN
Yesterday I registered the domain temp.now. Today, I deployed a temporary email tool using open-source code, which is convenient for registering products and services. As long as you save the login credentials, you can keep the generated addresses indefinitely. Enjoy! EN URL: https://temp.now/en/
2024 · temp.now
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Hey HN, For years, my local development setup has been a fragile mess of tools that never quite played nicely together. On my mac, it was a constant battle with Homebrew services starting (or not starting) on boot, conflicting PHP and Node versions managed by `asdf` or `nvm`, and a collection of `docker-compose.yml` files that I'd copy-paste and tweak for every single project. The cognitive load was just too high. Setting up SSL was another chore involving `mkcert`. Sharing a quick demo with a colleague meant firing up ngrok. And if I wanted to run two projects that needed different versions…
Oct 2025 · servbay.com
- 12LO
2021 · disposable-emails.github.io
- 13IB
I wanted to share a project I have been working on over the past week. It is a simple local memory system that saves your sessions into Markdown files, which can be viewed later. I developed this after using Claude Mem. I really enjoyed working with it, but it was consuming a lot of RAM, and each Claude session was becoming a major resource hog. I also tried other plugins and MCP solutions, but ran into similar issues, either slow performance or concerns about data being sent elsewhere. Because privacy was a big thing for me, I decided to build my own solution that keeps all data local.
Feb 2026 · github.com
- 14CP
I thought it would be great to share code snippets without saving them on a server, so I created http://mem.pe It allows you to paste code and save it in your browser's local storage. When you share the URL of the pasted code, other people will connect to it via web sockets. For example, this http://mem.pe/#sge/5 you will be pulling from my browser. I'll keep it open for a while. If you close the web app, your code paste will not be available for anyone to see, until you open the web app again. This is obviously, not suitable for using at forums and other places…
2013
- 15ST
The service lets you share an entire folder - not just a single file - with anyone on the Internet in a single click. Under the hood, GET responses are hydrated with file fragments streamed over a duplex WebSocket connection. Close the browser tab, and the server disappears. Files can also be password-protected. I built it because I needed a way to share a static website with a client without first uploading the work to a cloud service.
Jun 2026 · socket2.me
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utils.foo a fully client side, ads-free developer utils app. Today, it has a timestamp converter, base64/url encoder/decoder, json & diff utils, quick pivoting data. A lot of these exist, but often buried with ads or unclear data usage. I wanted to build something for myself that is ads-free and easy to use. My goal is get to top 20 commonly used tools, make them feature-rich and then reduce the page size. Will appreciate feature/tools requests and feedback at https://github.com/midplane/forum.utils.foo/issues.
2024 · utils.foo
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TemporaryMail.com was created after struggling to find a working, secure and reliable service which provides temporary email addresses. The goal is to keep this service as simple to use as possible - while also always providing a free option which does not require registration. Some of the features: - Multiple domains to choose from, each with unique hostnames and IPs. - Support for inline images in emails. - Attachments are supported and can be downloaded. - Read your emails safely inside a sandbox (all external scripts disabled). - Read emails without automatically loading any external…
2020
- 19IB
Hi HN, I'm excited to share a project I've been working on: UnwrapEmail(https://unwrap.email), an API designed to detect and verify disposable or temporary email addresses. Features: - Detect disposable email addresses - Extract labels from email addresses (e.g., Gmail) - Normalize addresses by removing labels or special characters (e.g., Gmail) - Validate MX records of domains - Check whether it’s safe to send to a given email to reduce bounces and maintain sender reputation Why I Built This: As the owner of an AI wrapper app, I've seen decent traffic thanks to SEO efforts + ads,…
2024 · unwrap.email
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Hey HN, I've been working on an email client and wanted to get some feedback! Minimail is built on Phonegap, so it uses HTML/CSS/JS for everything user-facing. The app also uses emailbox (a related project of mine) as the backend API for receiving/parsing/sending emails. I think email clients need a huge UX/UI overhaul, and so I'm trying to build a flexible/hackable email client that anyone can customize to fit their email workflow. Thanks for any feedback! Website: https://minimail.herokuapp.com/ Email: nick (at) getemailbox.com
2013
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2019 · listmonk.app
- 24IT
2016 · ihazspam.ca
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