Software Alternatives, Accelerators & Startups

NativeBase VS Fillr.app

Compare NativeBase VS Fillr.app and see what are their differences

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NativeBase logo NativeBase

Experience the awesomeness of React Native without the pain

Fillr.app logo Fillr.app

Form Filler & Test Data Manager: AutoFill With Data You Control
  • NativeBase Landing page
    Landing page //
    2023-09-19
  • Fillr.app Capture Once, Fill Forever
    Capture Once, Fill Forever //
    2026-06-26
  • Fillr.app You Decide Every Field
    You Decide Every Field //
    2026-06-26
  • Fillr.app Fill From Your Own Data
    Fill From Your Own Data //
    2026-06-26
  • Fillr.app Speaks +60 Languages
    Speaks +60 Languages //
    2026-06-26
  • Fillr.app Fill Forms With One Click
    Fill Forms With One Click //
    2026-06-26

Fillr is a form filler and test data manager for Chrome โ€” for when it matters what goes into every field. Save any form as a preset with a rule per field, fill it from your own CSV or Excel rows, and manage all your test data in one place. Realistic generated data (110+ types, 60+ languages) is built in โ€” but you decide where it goes.

Anyone can spray random values into a page. Fillr is for when the data has to be right.

๏ฟฝ EVERY FIELD, YOUR RULES โœ“ Capture any form once and save it as a reusable preset โœ“ Set a rule per field: Generate, Fixed value, Blank, Skip, or Dataset column โœ“ Presets auto-match pages by URL pattern โ€” the right preset surfaces the moment you land on the page (with a picker when several match) โœ“ Preview the fill before you run it โœ“ Unlimited presets, free

๏ฟฝ FILL FORMS FROM YOUR OWN DATA (Pro) โœ“ Link a dataset to a preset, map columns to fields, and fill row by row โ€” sequential with a "row 3 of 20" readout, or random โœ“ Run 50 test cases through the same checkout without typing a single value โœ“ Your edge cases, your real records, your regression rows โ€” not random noise

๏ฟฝ๏ธ A REAL TEST DATA MANAGER โœ“ Import CSV, Excel or JSON โ€” or generate sheets of realistic dummy data โœ“ Edit rows in a spreadsheet grid, organize with tags โœ“ Export any dataset to CSV, Excel or JSON

โšก INSTANT FILL, WHEN YOU JUST NEED VALUES One click auto-fills every field with realistic fake data โ€” names, emails, addresses, phones, dates and more. Zero setup, works on any site, one-click Clear when you're done.

๏ฟฝ 60+ LANGUAGES (Pro โ€” English is free) Generate locale-accurate names, addresses and phone numbers in French, German, Japanese, Arabic and dozens more for international testing.

๏ฟฝ๏ธ POINT-AND-CLICK, 100% NO-CODE A side panel plus a draggable floating bar on the page. Fill, clear, capture, switch presets โ€” no scripts, no selectors, no JSON to edit.

Fillr.app

Website
fillr.app
$ Details
freemium $9.99 / Monthly
Platforms
Web (Dashboard) Chrome
Release Date
2026 June

NativeBase features and specs

  • Cross-Platform Compatibility
    NativeBase offers components that work seamlessly across both iOS and Android, ensuring a consistent user experience across different devices.
  • Rich Component Library
    Provides a vast collection of pre-built UI components, such as buttons, forms, navigations, and more, significantly speeding up the development process.
  • Customization
    Highly customizable themes and components that allow you to match the look and feel of your app to specific design requirements.
  • Community Support
    Active community and extensive documentation make it easier to find solutions to common problems and get support from fellow developers.
  • Integration with React Native
    Designed to work specifically with React Native, offering better integration and performance compared to more generalized component libraries.
  • Accessible Design
    Offers components and practices aimed at making apps more accessible, which is crucial for creating inclusive applications.

Possible disadvantages of NativeBase

  • Learning Curve
    Can have a steep learning curve for developers who are not familiar with React Native or component-based design.
  • Performance Overhead
    May introduce some performance overhead due to the abstraction layers, which might not be suitable for performance-critical applications.
  • Dependency Management
    Frequent updates and changes in the library can lead to dependency issues that require regular maintenance and updates.
  • Limited Advanced Customization
    While basic customization is easy, deeply customizing components to fit unique use cases can be challenging and may require additional effort.
  • Vendor Lock-in
    Relying heavily on any proprietary framework or library can make it difficult to switch technologies in the future, constraining flexibility.
  • Size
    The library can add to the overall size of the application, which might be a concern for apps where minimizing the footprint is crucial.

Fillr.app features and specs

  • Presets
    Capture any web form as a reusable preset โ€” refill in one click
  • Filling Rules
    Per-field fill rules: generated data, fixed value, your own data, or skip
  • Datasets
    Datasets module: build, generate, or import rows of test data
  • Your Data
    Fill forms with your own imported data, not just fake values
  • Bulk Data Generation
    Use presets schema to generate bulk of data
  • 60+ locales
    60+ locales for realistic, region-specific test data

Analysis of Fillr.app

Overall verdict

  • Fillr.app appears to be a form-filling automation tool designed to save time by auto-completing online forms, applications, and repetitive data entry tasks. Based on available information, it offers a convenient solution for reducing manual typing, though users should verify current features, pricing, and security practices directly on their site before committing.

Why this product is good

  • Automates repetitive form-filling tasks to save time
  • Reduces manual data entry errors
  • Likely offers browser extension or integration for ease of use
  • Can store commonly used information for quick access across multiple sites

Recommended for

  • Job seekers filling out multiple online applications
  • Professionals who frequently complete online forms
  • Small business owners handling repetitive data entry
  • Users looking to streamline online registration and checkout processes

NativeBase videos

NativeBase Market Purchase Flow

Fillr.app videos

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Category Popularity

0-100% (relative to NativeBase and Fillr.app)
Development Tools
100 100%
0% 0
Autofill
0 0%
100% 100
Developer Tools
100 100%
0% 0
Web Forms
0 0%
100% 100

Questions & Answers

As answered by people managing NativeBase and Fillr.app.

What makes your product unique?

Fillr.app's answer:

It leads with control, not random fill. Capture any web form as a reusable preset, set per-field rules (generated, fixed, your own data, or skip), and refill in one click โ€” plus a built-in Datasets module to build, generate, and export test data. A form-filler and test-data manager in one, no code.

Why should a person choose your product over its competitors?

Fillr.app's answer:

Fake Filler only sprays random data; Mockaroo generates data but can't fill forms. Fillr does both โ€” and lets you fill with your own data, with reusable presets, per-field control, and 60+ locales. No scripts.

How would you describe the primary audience of your product?

Fillr.app's answer:

QA engineers and developers who repeatedly test web forms and need realistic, controllable test data. Demo and sales engineers are a natural secondary audience.

Which are the primary technologies used for building your product?

Fillr.app's answer:

Next.js 15, React 19, and TypeScript dashboard; a Manifest V3 Chrome extension built with Vite and supabase for backend

User comments

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Social recommendations and mentions

Based on our record, NativeBase seems to be more popular. It has been mentiond 22 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.

NativeBase mentions (22)

  • Exploring the Best UI Component Libraries for React Native apps
    Gluestack, like any other customizable UI library, is built to make styling less cumbersome. It comprises a set of themed and unstyled components easily integrated across different platforms and devices. Originally, Gluestack was a part of NativeBase, a component library for both React and React Native. With performance and maintainability in mind, NativeBase was split into two parts, focusing on a universal... - Source: dev.to / over 2 years ago
  • Best headless UI libraries in React Native
    Just like the other libraries mentioned in this article, Gluestack is another unstyled component library. Originally a part of NativeBase, the developer team created this library to prevent bloat and enhance maintainability of the project. - Source: dev.to / almost 3 years ago
  • An Overview of 25+ UI Component Libraries in 2023
    KumaUI : Another relatively new contender, Kuma uses zero runtime CSS-in-JS to create headless UI components which allows a lot of flexibility. It was heavily inspired by other zero runtime CSS-in-JS solutions such as PandaCSS, Vanilla Extract, and Linaria, as well as by Styled System, ChakraUI, and Native Base. ### ๏ปฟVue. - Source: dev.to / almost 3 years ago
  • 7 Popular React Native UI Component Libraries You Should Know
    NativeBase is a collection of essential cross-platform React Native components. The components are built with React Native combined with some JavaScript functionality with customizable properties. NativeBase is fully open-source and has 18,000+ stars on GitHub. - Source: dev.to / over 3 years ago
  • React vs React Native: How Different Are They, Really?
    CSS-based UI libs don't make sense on mobile; your new options include NativeBase, React Native Elements and others). Some web-based UI libs do have RN siblings though - such as React Native Material and React Native Paper (for Material-UI), and tailwind-rn (for Tailwind). This just means new decisions to make, some learning, and new paradigms for how to use the new libs. - Source: dev.to / over 3 years ago
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Fillr.app mentions (0)

We have not tracked any mentions of Fillr.app yet. Tracking of Fillr.app recommendations started around Jun 2026.

What are some alternatives?

When comparing NativeBase and Fillr.app, you can also consider the following products

React Native - A framework for building native apps with React

QuickForm - Autofill Forms - Chrome extension to autofill forms easier and faster.

React Native Desktop - Build OS X desktop apps using React Native

Fake Filler - The quickest way to fill all inputs on a page with fake data.

React Native UI Kitten - Customizable and reusable react-native component kit

Magical - Make tasks disappear.