Software Alternatives, Accelerators & Startups

AllTools.dev VS Jayson

Compare AllTools.dev VS Jayson and see what are their differences

AllTools.dev logo AllTools.dev

500+ free online calculators and tools for finance, health, math, conversions, and more.

Jayson logo Jayson

Powerful JSON viewer for iPhone and iPad
Not present

AllTools.dev is a modern, fast, free online toolkit built for people who need quick, accurate calculators and converters without signing up, creating an account, or wading through cluttered interfaces. The platform offers 500+ tools across finance (mortgage calculators, loan amortization, compound interest, currency conversion, debt payoff, retirement planning), health (BMI, calorie needs, pregnancy tracking, ideal weight, body composition), math (scientific, statistical, geometric, percentage, fraction), science and engineering, date and time utilities, unit conversions (volume, length, temperature, power, area), developer utilities (JSON, regex, JWT, hashing), and interactive math and algorithm visualizations. Every tool is free and works instantly in the browser. No accounts, no paywalls, no sign-in walls, no data collection beyond standard analytics. Calculations happen client-side for speed and privacy. Unlike older established calculator sites that grew through 20 years of ad-heavy layouts and outdated UX, AllTools.dev is built fresh on Astro with a clean, mobile-first, accessibility-conscious interface. New calculators ship weekly based on user demand. Ideal for: students doing homework, developers needing quick conversions, finance-minded folks planning loans and investments, professionals doing scientific or engineering calculations, and anyone who just needs a fast answer without installing an app.

  • Jayson Landing page
    Landing page //
    2021-09-25

AllTools.dev

Release Date
2026 April
Startup details
Country
Bulgaria
Founder(s)
Ivan Kovachev
Employees
1 - 9

Jayson

Website
jayson.app
Pricing URL
-
Release Date
-

AllTools.dev features and specs

  • All-in-one toolbox
    AllTools.dev provides a wide collection of developer and utility tools in a single platform, eliminating the need to visit multiple websites for different tasks like encoding, formatting, converting, and generating data.
  • Free to use
    The tools available on AllTools.dev are free to access, making it a cost-effective solution for developers and professionals who need quick access to common utilities without paying for subscriptions.
  • Browser-based convenience
    All tools run directly in the browser, meaning there is no need to install software or dependencies. Users can quickly access and use any tool from any device with a web browser.
  • Wide variety of tools
    The platform covers a broad range of categories including text manipulation, JSON formatting, encoding/decoding, hash generation, color tools, and more, catering to diverse developer needs.
  • Simple and clean interface
    The site features a straightforward, easy-to-navigate interface that allows users to find and use the tools they need without unnecessary complexity or clutter.

Jayson features and specs

  • User-Friendly Interface
    Jayson app provides a clean and intuitive UI, making it easy for users to manipulate and view JSON data without a steep learning curve.
  • Feature-Rich
    It offers a variety of features including syntax highlighting, error detection, and JSON schema support, enhancing productivity for developers working with JSON.
  • Cross-Platform
    Jayson is available on multiple platforms, allowing users to access their JSON files from different devices and environments seamlessly.
  • Customizability
    Users can customize the app settings and appearance to suit their preferences and workflow needs, providing a personalized experience.
  • Performance
    The app is optimized for performance, allowing users to load and edit large JSON files efficiently.

Possible disadvantages of Jayson

  • Premium Features
    Some advanced features are locked behind a paywall, requiring users to purchase a premium version to access the full capabilities of the app.
  • Learning Curve for Advanced Features
    While the basic interface is easy to use, some of the advanced features and customizations can have a learning curve, particularly for new users.
  • Limited Free Version
    The free version of the app may have limitations in terms of file size, features, or access, which might not be sufficient for professional-grade work.
  • Platform Exclusivity
    Depending on the specific platform support, users might face restrictions if they need the app on unsupported operating systems or devices.
  • Occasional Bugs
    Some users have reported occasional bugs or stability issues, which can be disruptive during intensive tasks or use.

Analysis of AllTools.dev

Overall verdict

  • AllTools.dev is a solid, convenient collection of free online developer utilities that runs in the browser, making it a handy bookmark for common coding and formatting tasks.

Why this product is good

  • Offers a wide range of developer tools (formatters, converters, encoders/decoders, generators) in one place
  • Free to use with no installation required, working directly in the browser
  • Client-side processing for many tools helps keep data private
  • Clean, straightforward interface that saves time switching between multiple single-purpose sites
  • Useful for quick one-off tasks without needing to write custom scripts

Recommended for

  • Developers who need quick access to common utilities like JSON formatting, Base64 encoding, or hashing
  • Students and beginners learning to code who want simple, accessible tools
  • Professionals looking for a consolidated toolbox to avoid bookmarking many separate sites
  • Anyone needing occasional data conversion, formatting, or generation tasks without installing software

AllTools.dev videos

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Add video

Jayson videos

Jayson Lobis - Child & Adolescent Learning/Facilitating Learning - Free Online Review

More videos:

  • Review - The Marvelous Mrs. Maisel Episode 1 (Pilot) REVIEW | Jayson Markey

Category Popularity

0-100% (relative to AllTools.dev and Jayson)
Developer Tools
43 43%
57% 57
Online Calculators
100 100%
0% 0
iPhone
0 0%
100% 100
Online Tools
100 100%
0% 0

User comments

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Social recommendations and mentions

Based on our record, Jayson seems to be more popular. It has been mentiond 1 time 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.

AllTools.dev mentions (0)

We have not tracked any mentions of AllTools.dev yet. Tracking of AllTools.dev recommendations started around May 2026.

Jayson mentions (1)

  • Exporting shortcuts?
    You can use the Get My Shortcuts action to retrieve a shortcut as a file, and then rename it so that its extension is .plist. A shortcut is just a glorified property list (plist), which can be represented as XML (thereโ€™s also a binary format that Apple uses a lot) or converted to JSON (not always easily, but shortcuts donโ€™t have any values that would be incompatible with JSON). I like to convert shortcuts to JSON... Source: almost 5 years ago

What are some alternatives?

When comparing AllTools.dev and Jayson, you can also consider the following products

AllToolsLab - AllToolsLab offers 50+ free online tools including PDF tools, calculators, converters and text utilities.

Dadroit JSON Viewer - Open a 1GB JSON file in a blink ๐Ÿ’ฃ

geteasetools.com - 1000+ free tools on Ease Tools including calculators, converters, generators and utilities with no signup, no ads and instant access.

JSON Generator - Create mock and sample JSON using a powerful template syntax

Omni Calculator - Helping you make rational decisions, one calculation at a time.

Fullstack Vue - The in-depth, complete, and up-to-date book on Vue.js