Software Alternatives, Accelerators & Startups

Fillr.app VS startbase.dev

Compare Fillr.app VS startbase.dev and see what are their differences

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Fillr.app logo Fillr.app

Form Filler & Test Data Manager: AutoFill With Data You Control

startbase.dev logo startbase.dev

Start your next startup, SaaS project, or side hustle with StartBase – the perfect foundation offering clean, modern code that follows best practices.
  • 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 — 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 — but you decide where it goes.

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

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

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

�️ A REAL TEST DATA MANAGER ✓ Import CSV, Excel or JSON — or generate sheets of realistic dummy data ✓ Edit rows in a spreadsheet grid, organize with tags ✓ Export any dataset to CSV, Excel or JSON

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

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

�️ POINT-AND-CLICK, 100% NO-CODE A side panel plus a draggable floating bar on the page. Fill, clear, capture, switch presets — no scripts, no selectors, no JSON to edit.

  • startbase.dev startbase
    startbase //
    2025-02-27
  • startbase.dev startbasesaas
    startbasesaas //
    2025-02-27
  • startbase.dev startbaseai
    startbaseai //
    2025-02-27
  • startbase.dev startbaseswiftui
    startbaseswiftui //
    2025-02-27
  • startbase.dev saasboilerplates
    saasboilerplates //
    2025-02-27

# StartBase: Your All-in-One Foundation for Modern Projects

Start your next startup, SaaS project, or side hustle with StartBase—the perfect foundation offering clean, modern code that follows industry best practices and integrates trendy open-source libraries. With seamless integration of third-party services, you can save months of work and accelerate your path to success today.


  1. Modern Tech Stack

    • Next.js Boilerplate: Build blazing-fast web applications with server-side rendering, static site generation, and code splitting.
    • SwiftUI Boilerplate: Take advantage of Swift’s powerful UI framework to create high-performance iOS apps.
  2. Seamless Integrations

    • E-commerce: Effortlessly set up online stores or subscription-based services with integrated payment systems and product management.
    • SaaS Essentials: Role-based access, user authentication, and subscription billing are baked in for rapid go-to-market.
  3. Clean & Maintainable Code

    • Written in a highly readable, modular format—easy to scale and collaborate on.
    • Linting, Testing, and CI/CD pipelines included out of the box for consistent quality.
    • Implements best-in-class design patterns and project structures to streamline development.
  4. Community & Support

    • Growing community of founders, developers, and entrepreneurs who share ideas, tips, and solutions.
    • Access to comprehensive documentation, tutorials, and quick-start guides.
    • Frequent updates that keep the codebase aligned with the latest trends.
  5. Time & Cost Efficiency

    • Avoid reinventing the wheel—StartBase handles repetitive setup tasks so you can focus on core product innovation.
    • Rapid Prototyping: Launch MVPs faster, gather user feedback, and iterate quickly.
    • Built-in templates for e-commerce, SaaS, AI services, and more.

Fillr.app

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

startbase.dev

$ Details
-
Platforms
-
Release Date
2024 December
Startup details
Country
United Kingdom
State
London
Founder(s)
Yunus Ozcan, Gizem Turker
Employees
10 - 19

Fillr.app features and specs

  • Presets
    Capture any web form as a reusable preset — 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

startbase.dev features and specs

  • Faster project setup
    Startbase.dev appears designed to help developers and founders quickly scaffold new projects with pre-built templates and boilerplate code, saving significant time compared to starting from scratch.
  • Focus on startups/MVPs
    The platform seems tailored toward entrepreneurs and indie developers who want to launch minimum viable products quickly, which can be valuable for validating ideas without heavy upfront investment.
  • Modern tech stack
    Such starter kits typically integrate current, popular frameworks and tools (e.g., Next.js, Tailwind, authentication, payments), reducing the need to research and configure these integrations manually.
  • Reduced boilerplate maintenance
    By using a pre-built base, developers can avoid reinventing common features like user authentication, billing, and dashboards, letting them focus on unique business logic instead.
  • Potential cost savings
    Compared to hiring a development team to build core infrastructure from scratch, using a starter template service can be more affordable for solo founders or small teams with limited budgets.

Possible disadvantages of startbase.dev

  • Limited customization flexibility
    Pre-built starter kits and boilerplates often come with opinionated architecture and design choices that can be difficult or time-consuming to modify for highly specific or unconventional use cases.
  • Vendor/template lock-in risk
    Relying on a specific boilerplate structure may create dependencies on certain libraries, patterns, or update cycles that could complicate long-term maintenance if the base template becomes outdated.
  • Learning curve for the specific stack
    If the chosen tech stack differs from what a developer is familiar with, there may still be a learning curve to understand and effectively customize the starter codebase.
  • Uncertain long-term support
    As a smaller or newer platform, there may be concerns about the longevity of updates, community support, and documentation compared to more established open-source alternatives.
  • Pricing transparency concerns
    Depending on the pricing model, users may find costs less transparent or harder to justify compared to free, open-source boilerplates available elsewhere in the developer community.

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

Analysis of startbase.dev

Overall verdict

  • Startbase.dev appears to be a developer-focused platform offering starter kits, boilerplates, or resources aimed at helping developers launch projects faster, though limited independent information is available to fully verify its offerings and quality.

Why this product is good

  • Likely provides pre-built templates or boilerplates to save development time
  • May offer curated resources for starting new software projects
  • Could target indie developers and startups looking to accelerate MVP development
  • Potentially cost-effective compared to building infrastructure from scratch

Recommended for

  • Indie developers seeking quick-start templates
  • Startup founders wanting to speed up MVP development
  • Solo developers looking for boilerplate code to reduce setup time
  • Small teams needing standardized project scaffolding

Category Popularity

0-100% (relative to Fillr.app and startbase.dev)
Web Forms
100 100%
0% 0
Website Templates
0 0%
100% 100
Chrome Extensions
100 100%
0% 0
Boilerplate
0 0%
100% 100

Questions & Answers

As answered by people managing Fillr.app and startbase.dev.

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 — 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 — 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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What are some alternatives?

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

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

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

Magical - Make tasks disappear.

Fill Hero - Smart Auto Form Filler & Form Automation Tool

Fake Data - A form filler extension with a lot of features

Mockaroo - A realistic data generator to test your app