Fresh Framework
React
Next.js
Preact.js
Svelte
Deno
Astro Build
Vue.js
CryptoTools.tech
CoinCodex
CyberChef
calculator.net
CoinStats
Bitculator
Coinbase
CoinMarketCap
CryptoTools โ https://cryptotools.tech โ A growing suite of 30+ free, single-purpose crypto & finance tools. Three families: calculators (Bitcoin DCA backtest, profit/P&L + tax, mining, portfolio/tax CSV, staking, leverage, liquidation, position size, impermanent lossโฆ), converters (gweiโETH + gas fee, satoshiโUSD, hashrate), and a privacy-first cryptography toolkit that runs 100% in your browser โ nothing is ever uploaded (SHA-256/keccak hashing, AES, RSA & key generators, BIP39 seed phrases, HD wallet addresses, JWT decoder, plus EVM/ENS/EIP-712 dev tools and more). Plus interactive Bitcoin data studies (DCA backtests, "what if you missed the best days", a monthly-returns heatmap). No sign-up, no tracking, no paywalls; pure static site with sub-second loads; works in 10 languages; every tool is embeddable. For traders, builders, and the privacy-conscious who want a fast answer without a bloated SaaS dashboard.
Fresh Framework CryptoTools.techCryptoTools.tech's answer:
CryptoTools.tech's answer:
CryptoTools.tech is a single, fast home for 30+ free crypto & finance tools โ calculators, converters, and a full cryptography toolkit โ with no sign-up, no tracking, and no paywalls. What sets it apart: every cryptography tool (hashing, AES, RSA, BIP39 seed phrases, HD wallets, JWT decoding, EVM/ENS dev utilities) runs 100% in your browser โ your keys and data never touch a server. It uniquely covers both meanings of "crypto" โ cryptocurrency calculators and cryptography utilities โ under one roof, in 10 languages, with every tool embeddable.
CryptoTools.tech's answer:
Most crypto tool sites make you sign up, bury the tool under ads and pop-ups, or send your input to a server. CryptoTools is the opposite: privacy-first (client-side cryptography โ nothing is uploaded), instant (static pages, sub-second loads, clean UI), and completely free with no account. You also get both worlds in one place โ finance calculators (profit/P&L, DCA backtests, mining, tax) and developer/cryptography utilities โ across 10 languages, with the formulas shown so you can trust the math. If you value speed, privacy, and not being upsold, it's the cleaner choice.
CryptoTools.tech's answer:
Three overlapping groups: (1) crypto traders & investors who need quick, reliable calculators (profit, DCA, position sizing, liquidation, tax estimates); (2) developers & web3 builders who need cryptography and Ethereum utilities (hashing, AES/RSA, BIP39, JWT, EVM bytecode, ENS namehash, EIP-712); and (3) privacy- and security-conscious users who want tools that run locally and never upload their data. It's global and multilingual, skewing toward technically literate, self-serve users who want an answer without a bloated dashboard.
CryptoTools.tech's answer:
It started from a simple frustration: every "crypto calculator" wanted a sign-up, was slow and ad-choked, or quietly sent your data to a server. So CryptoTools was built as the tool site I wished existed โ fast, free, private, no account โ and grew into a broad cluster spanning both cryptocurrency calculators and cryptography utilities. It's an independent, bootstrapped project with a simple principle: do one thing well per page, and respect the user's time and privacy.
CryptoTools.tech's answer:
Built with Astro (static-site generator, ships zero JS by default) and Preact "islands" for interactivity โ so pages are pure static HTML/CSS/JS with sub-second loads and green Core Web Vitals. Cryptography runs in-browser via audited libraries (@noble/hashes, @noble/curves, @scure/bip39/bip32) and the Web Crypto API. Served by Caddy (automatic HTTPS, HTTP/2+3) on Docker, with a thin optional backend only for live/historical price data. Fully internationalized into 10 languages.
Based on our record, Fresh Framework seems to be more popular. It has been mentiond 70 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
It's not so bad if you're doing it professionally because you pretty much set it up once and you're done. But yeah it's annoying for one-off projects or if web dev isn't your main job. That said you can avoid it. I wrote a website using Fresh (https://fresh.deno.dev/) and that was the only thing I needed. Incredibly simple compared to the usual Node/Webpack mess. Plus you're writing in Typescript, and can use TSX.... - Source: Hacker News / 10 months ago
I would highly recommend giving Deno Fresh[1] a go, it has a lot of the same features as Next.js but I find it to result in a much cleaner codebase overall. This coupled with Deno's built in KV store and hosted on Deploy makes for quite a zen workflow to be honest. [1]: https://fresh.deno.dev. - Source: Hacker News / about 1 year ago
Ummm... Well I am mostly a web dev so I will try out the Fresh ๐ framework to make something simple like an app where a user can log their mood (why not ๐ฆ). - Source: dev.to / over 1 year ago
Fresh. Deno-based full-stack web framework usingโฆ. - Source: dev.to / over 1 year ago
Everything changed when I started "Tear Down and Rebuild" my blog. After many times of hesitating and pondering over technology choices, the name Fresh appeared. However, Fresh requires Deno as its runtime environment. Having no prior deployment experience but thinking "it's just a JavaScript runtime environment!" gave me more confidence. The next story is this article. - Source: dev.to / over 1 year ago
React - A JavaScript library for building user interfaces
CoinCodex - Live cryptocurrency prices and charts of top cryptocurrencies by crypto market cap. Complete cryptocurrency market overview including Bitcoin and 9468 altcoins.
Next.js - A small framework for server-rendered universal JavaScript apps
CyberChef - The Cyber Swiss Army Knife
Preact.js - Preact is a fast 3kB alternative to React with the same modern API. Components & Virtual DOM.
calculator.net - Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.