
Google Authenticator
Duo Security
Azure Multi-Factor Authentication
LastPass
Let's Encrypt
Microsoft Authenticator
Ensighten
Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.

DuskTools.app
DevToys
JSONLint
CyberChef
regular expressions 101
DevsBox
FreeFormatter
19 free browser-based developer tools — no signup, no tracking, everything runs client-side.

Which is more popular?
Based on our record, Authy seems to be more popular. It has been mentioned 140 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | authy.com | devtoolkit.site |
| Pricing | — | |
| Company | — | 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Authy yet.
DevToolKit is a collection of 19 free online developer tools that run entirely in the browser. No backend, no signup, no data ever leaves your machine. Built with Next.js 14 and Tailwind CSS. Tools include: JSON Formatter & Validator, JSON Tree Viewer with node path copying, YAML-JSON...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Authy is recommended for individuals who seek a user-friendly and secure way to manage their two-factor authentication across multiple devices and platforms. It is suitable for both beginners and experienced users who prioritize security and convenience in their digital security practices.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
How to Use Authy To Keep Your Data Safe
More videos
No DevToolKit.site videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Authy and DevToolKit.site.
DevToolKit.site's answer:
DevToolKit runs 100% in the browser with zero signup. Unlike CyberChef, which has a steep learning curve with its recipe-based interface, DevToolKit gives you 19 standalone tools — each with a clean, focused UI for a single task. Unlike DevToys, it works on any device with a browser — no desktop app installation needed. And unlike SmallDevTools or similar online toolkits, DevToolKit includes unique tools like a PostgreSQL Config Generator (a free PGTune alternative), a Cron Expression Parser that calculates next 10 actual run times, and a JSON Tree Viewer with click-to-copy node paths. Every tool uses native browser APIs like Web Crypto for hashing — no data is ever sent to a server, which matters if you're working with production JWTs, API keys, or database configs.
DevToolKit.site's answer:
Backend and full-stack developers who deal with JSON, JWTs, SQL, cron jobs, and PostgreSQL configuration on a daily basis. DevOps engineers who need quick encoding, hashing, or regex testing without installing CLI tools. Developers who care about data privacy and don't want to paste production tokens or API responses into random websites that may log input data.
DevToolKit.site's answer:
I'm a backend developer with 10+ years of experience in Python and Go, working on distributed systems and microservices. Every day I was jumping between 5-6 different sites to format JSON, decode a JWT, test a regex, or convert a timestamp — each one bloated with ads, cookie banners, and signup walls. One evening I decided to build all the tools I actually use into a single place where everything runs client-side. The first version had 15 tools and took a weekend to build with Next.js and Tailwind CSS. After getting feedback, I added a PostgreSQL Config Generator (because PGTune hasn't been updated in years), a JSON Tree Viewer, and an HTTP Status Code Reference. It's now at 19 tools and growing based on what developers ask for.
DevToolKit.site's answer:
Next.js 14 with App Router for server-side rendering and per-page SEO metadata. Tailwind CSS for styling with a custom dark theme. Web Crypto API (crypto.subtle) for SHA-1/256/384/512 hashing and cryptographically secure password generation — zero external crypto libraries. FileReader API for client-side Base64 file encoding. All tools are React components with no backend — the entire app is static and deployed on Vercel. Each tool is a separate route with its own metadata, canonical URL, and sitemap entry for independent Google indexing.
DevToolKit.site's answer:
DevToolKit is a free tool with no accounts, so we don't track individual users. It's used by individual developers and small teams who need quick, private access to common dev utilities without enterprise overhead. The tool is designed for anyone who works with APIs, databases, or web development and wants a fast, ad-free, privacy-respecting alternative to existing online tools.
DevToolKit.site's answer:
Three things set DevToolKit apart. First, it includes tools you won't find in other online toolkits — a PostgreSQL Config Generator that replaces PGTune with hardware-aware tuning calculations, a Cron Expression Parser that doesn't just describe the schedule but calculates the next 10 actual execution timestamps, and a JSON Tree Viewer where you click any node to copy its full JavaScript path like data.users[0].email. Second, every tool uses native browser APIs instead of external libraries — hashing runs through Web Crypto API with hardware acceleration, passwords use crypto.getRandomValues(), file encoding uses FileReader — meaning zero dependencies and zero data transmission. Third, each of the 19 tools lives on its own URL with dedicated SEO metadata, so you can bookmark devtoolkit.site/jwt-decoder/ and go straight to it — no navigating through menus or loading tools you don't need.
Share your experience with using Authy and DevToolKit.site. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


And another big difference that it provides over the Google Authenticator is the Authy passcode. Using this code, no one will be able to browse through all your codes.
One of Twilio Authy’s big advantages is encrypted cloud backup. However, it’s somewhat concerning that you can add the account to a new phone using “a PIN code sent via a call or an SMS,” according to Authy’s support...
Although most alternatives to Google Authenticator are completely free but potentially relatively limited in terms of options, Duo can offer you a lot if you’re willing to pay for it. The free option, which Cisco...
We have no reviews of DevToolKit.site yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Download an authenticator app (Google Authenticator, Authy, or Microsoft Authenticator). - Source: dev.to / 11 months ago
Authy - Two-factor authentication (2FA) on multiple devices, with backups. Drop-in replacement for Google Authenticator. Free for up to 100 successful authentications. - Source: dev.to / almost 3 years ago
Https://authy.com/ Acquired by Twilio. I'm not even sure if they still update it, last blog post was 3 years ago. - Source: Hacker News / almost 3 years ago
Tracking DevToolKit.site since Feb 2026.
When comparing Authy and DevToolKit.site, you can also consider the following products.

Google Authenticator is a multifactor app for mobile devices.
Compare Google Authenticator to Authy or DevToolKit.site:

150+ free browser-based developer tools - no sign-up, no tracking, no backend. JSON formatter, Base64 encoder, regex tester, JWT decoder, UUID generator, HTTP status lookup, MIME types, port reference, cron builder & more. Everything runs locally in
Compare DuskTools.app to Authy or DevToolKit.site:

Duo Security provides cloud-based two-factor authentication. Duo’s technology can be deployed to protect users, data, and applications from breaches, credential theft, and account takeover.
Compare Duo Security to Authy or DevToolKit.site:

A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.
Compare DevToys to Authy or DevToolKit.site:

Azure Multi-Factor Authentication helps safeguard access to data and applications while meeting user demand for a simple sign-in process.
Compare Azure Multi-Factor Authentication to Authy or DevToolKit.site:

JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.
Compare JSONLint to Authy or DevToolKit.site: