Software Alternatives, Accelerators & Startups

quicktype VS 101Tool

Compare quicktype VS 101Tool and see what are their differences

quicktype logo quicktype

Generate beautiful, typesafe code from data

101Tool logo 101Tool

Free, browser-based API Studio, PDF optimizer, JSON code generator, and developer conversion toolkit โ€” no signup or installation required.
  • quicktype Landing page
    Landing page //
    2021-09-23
  • 101Tool
    Image date //
    2026-07-18
  • 101Tool
    Image date //
    2026-07-18
  • 101Tool
    Image date //
    2026-07-18
  • 101Tool
    Image date //
    2026-07-18

101Tool is a free, browser-based utility platform for developers and teams who want practical tools without installing an app or creating an account.

Its API Studio supports REST and GraphQL requests, multi-request tabs, Params, Auth, Headers, Body and Tests editing, response inspection, variable extraction, collection runs, Postman Collection and OpenAPI imports, local request history, WebSocket sessions, environment variables, and optional small-team workspace synchronization. Sensitive values can remain device-local.

The PDF Optimizer analyzes and optimizes PDF files in the browser with multiple compression levels while prioritizing readable output and local processing. The Code Generator converts JSON payloads into TypeScript interfaces, Go structs and Python Pydantic models. The Developer Toolkit includes number-base conversion, ASCII tools, color conversion, URL and Base64 encoding, text utilities and hexadecimal helpers.

101Tool offers Korean and English interfaces, responsive layouts, light and dark themes, and detailed technical guides for every major tool. Core utilities are available free of charge with no installation required.

quicktype

Pricing URL
-
$ Details
Release Date
-

101Tool

$ Details
free
Release Date
2026 July
Startup details
Country
South Korea
Founder(s)
Jason Lee
Employees
1 - 9

quicktype features and specs

  • Ease of Use
    Quicktype provides an intuitive interface that allows users to easily generate code for data models from JSON, making it accessible even for those with minimal coding experience.
  • Multi-Language Support
    Quicktype supports multiple programming languages, allowing developers to generate code in their preferred language, enhancing versatility and convenience.
  • Time Efficiency
    By automating the creation of data models, Quicktype saves valuable time for developers, enabling faster project development and iteration.
  • Accuracy
    Quicktype generates highly accurate data models that closely match the structure and data types of the input JSON, reducing the likelihood of errors.
  • Customization
    Users can customize the generated code to fit their specific needs, allowing for flexible integration into existing projects.

Possible disadvantages of quicktype

  • Learning Curve
    While the interface is user-friendly, there may still be a learning curve for new users to fully understand how to customize and effectively use Quicktype.
  • Dependency on Input Quality
    The accuracy of the generated models is highly dependent on the quality and structure of the input JSON. Poorly structured JSON may lead to suboptimal or erroneous code.
  • Limited Complex Logic
    Quicktype focuses on generating data models and may not handle complex business logic or advanced use cases without additional manual coding.
  • Internet Reliance
    As a web-based tool, Quicktype requires an internet connection to function, which could be a limitation in offline development environments.
  • Customization Complexity
    While customization is a pro, it can also add complexity for users who need to modify the generated code significantly, possibly requiring more advanced coding knowledge.

101Tool features and specs

  • API Studio
    REST, GraphQL, WebSocket, collections, tests and environments
  • Local PDF Optimization
    Browser-based PDF analysis and multi-level optimization
  • JSON Code Generation
    TypeScript, Go and Python Pydantic output

quicktype videos

Tamiya CA Cement (Quicktype) Scale Model Tool Review

More videos:

  • Review - iPhone 5S iOS 8 - QuickType Keyboard Predictive Text Review
  • Review - Word Salad: Messaging Friends With Apple's QuickType

101Tool videos

No 101Tool videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to quicktype and 101Tool)
Developer Tools
86 86%
14% 14
API Management
0 0%
100% 100
Productivity
100 100%
0% 0
PDF Tools
0 0%
100% 100

User comments

Share your experience with using quicktype and 101Tool. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, quicktype seems to be more popular. It has been mentiond 58 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.

quicktype mentions (58)

  • Writing a TypeScript Type Inference Engine in 300 Lines of Vanilla JS
    Every time I get a new API endpoint, I do the same small dance: look at a response, eyeball the shape, write a TypeScript interface, copy-paste it into the codebase. Quicktype exists and is excellent โ€” but it's also a multi-language beast with a web app that's heavier than I need for this one job. - Source: dev.to / 4 months ago
  • Goscript: Transpile Go to human-readable TypeScript
    Neat! I have experimented with various ways to convert Go structs to/from TypeScript interfaces. - https://quicktype.io/ - https://github.com/danielgtaylor/huma then OpenAPI -> TS - https://github.com/gzuidhof/tygo - https://github.com/coder/guts guts also does some AST stuff. It seems like this project could help with this and then some. - Source: Hacker News / 7 months ago
  • Show HN: Guts โ€“ convert Golang types to TypeScript
    - JSON Schema is well supported in LLMs (for example, with structured output or vibe coding). [1] https://quicktype.io/. - Source: Hacker News / 8 months ago
  • A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev
    QuickType.io - Quickly auto-generate models/class/type/interface and serializers from JSON, schema, and GraphQL for working with data quickly & safely in any programming language. Convert JSON into gorgeous, typesafe code in any language. - Source: dev.to / over 2 years ago
  • 10 Lesser-Known Tools and Websites to Spice Up Your Developer Toolbox
    Quicktype automates the generation of code from JSON data. It's a real timesaver when dealing with complex JSON structures in your applications. - Source: dev.to / almost 3 years ago
View more

101Tool mentions (0)

We have not tracked any mentions of 101Tool yet. Tracking of 101Tool recommendations started around Jul 2026.

What are some alternatives?

When comparing quicktype and 101Tool, you can also consider the following products

JSON Crack - Visualize JSON into interactive graphs

Postman - The Collaboration Platform for API Development

10015.io - 10015.io is an all-in-one toolbox offering many tools from various categories.

Smallpdf - PDF document management and conversion suite

JSON Editor Online - View, edit and format JSON online

Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.