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Markup.io VS ZIP Code API

Compare Markup.io VS ZIP Code API and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

Markup.io logo Markup.io

The easiest way to comment and share feedback on over 30 file types. Sign up for free, upload your content, drop a comment, and share for review. Yep, itโ€™s that simple.

ZIP Code API logo ZIP Code API

REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah
  • Markup.io Landing page
    Landing page //
    2023-03-24

About MarkUp.io

MarkUp.io is an online commenting tool platform that enables users to review and comment on over 30 file types, including websites, images, PDFs, and videos. MarkUp.io helps teams to provide contextual and clear feedback, reducing review cycles by 80%. A Chrome extension is also available, which allows users to create new Web MarkUps directly from their browser.

MarkUp.io Pricing

The Free plan includes one workspace, 20 MarkUps, and 10GB of storage. The Pro plan is the best value at $49/month (billed annually). It includes one workspace, unlimited MarkUps, 500GB of storage, folders, and the ability to disable the share link for enhanced security. The Enterprise plan is tailored to the needs of larger organizations. It includes all the features of the Pro plan as well as additional features such as SSO, SOC2 compliance documentation, and priority support.

  • ZIP Code API Landing page
    Landing page //
    2026-05-21

API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America โ€” no separate APIs by country or data type.

What it does

  • Address validation and standardization โ€” production-grade parser with ZIP+4 append, refreshed monthly
  • Radius search โ€” centroid haversine and true spatial polygon intersection. Returns ZIPs/FSAs within range, with per-result pct_inside overlap percentage for spatial queries
  • Unified lookup endpoint โ€” accepts US ZIP, ZIP+4, Canadian FSA, full Canadian postal codes, or latitude/longitude inputs
  • Autocomplete/typeahead โ€” cities, counties, metros, states, FSAs, ZIPs
  • Point-to-point distance โ€” between any two postal points
  • Census ACS demographics โ€” 2011โ€“2024, 542 fields per ZIP across income, education, housing, social, and economic profiles
  • Boundary lookups โ€” Census tracts, congressional districts, state legislative areas, school districts โ€” with computed intersection percentages per ZIP

What makes it different

  • Licensed commercial data โ€” not commodity or scraped sources
  • Canadian postal coverage โ€” most peers in this space are US-only
  • True spatial radius โ€” not just centroid haversine
  • 14 years of historical ACS depth via API โ€” unusual outside of raw Census downloads
  • One endpoint for all of North America โ€” no country-detection or input-routing logic to maintain on the client side

Pricing

  • Free โ€” 2,500 lookups/day, no credit card required, no expiry
  • Developer โ€” $49/mo, 100K credits, 300/min
  • Professional โ€” $149/mo, 350K credits, 300/min
  • Business โ€” $499/mo, 1.5M credits, 600/min
  • Credit packs โ€” one-time, from 25K ($19) up to 2M ($799)

Resources

Markup.io

Website
markup.io
Pricing URL
Official Markup.io Pricing
$ Details
freemium $59.0 / Monthly (Pro account - unlimited users)
Release Date
-
Edit details

ZIP Code API

Website
zip-codes.com
Pricing URL
-
$ Details
-
Release Date
2026 April
Startup details
Country
United States
State
NY
City
Hopewell Junction
Edit details

Markup.io features and specs

  • Real-Time Collaboration
    Markup.io allows multiple users to collaborate on feedback and annotations in real-time, streamlining the review process.
  • User-Friendly Interface
    The platform offers a simple and intuitive interface that makes it easy for users to annotate and leave comments without a steep learning curve.
  • Integration Capabilities
    Markup.io can integrate with various project management and communication tools, enhancing workflow efficiency and data synchronization.
  • Versatile Annotations
    Users can annotate directly on websites, images, or PDFs, providing flexibility for different types of projects.
  • Easy Sharing
    Links can be easily shared with stakeholders, making it convenient to gather feedback from various sources quickly.

Possible disadvantages of Markup.io

  • Limited Free Plan
    The free version of Markup.io may have restrictions on features and usage, requiring users to upgrade for full access.
  • Dependency on Internet Connection
    Since it's a web-based tool, a stable internet connection is necessary to use the platform effectively.
  • Learning Curve for Advanced Features
    While the basic interface is user-friendly, some advanced features might require time to learn and utilize effectively.
  • Potential for Overuse of Annotations
    With its ease of use, there might be a tendency to over-annotate, which can clutter the feedback and review process.
  • Privacy Concerns
    Users may have concerns about data privacy and security, especially when dealing with sensitive content or proprietary information.

ZIP Code API features and specs

  • Comprehensive ZIP Code Data
    The ZIP Code API from zip-codes.com provides extensive data including ZIP code details, city information, state data, and geographic coordinates, making it a thorough resource for location-based lookups.
  • Multiple Lookup Options
    The API supports various types of lookups including ZIP code to city/state, city/state to ZIP code, distance calculations between ZIP codes, and radius searches, offering flexible querying capabilities.
  • Easy Integration
    The API uses standard REST-based HTTP requests and returns data in commonly used formats like JSON and XML, making it straightforward to integrate into most applications and programming languages.
  • Distance and Radius Calculations
    The API includes built-in functionality for calculating distances between ZIP codes and finding ZIP codes within a specified radius, which is valuable for store locators, shipping estimates, and proximity-based features.
  • Well-Documented Endpoints
    The API provides clear documentation for its various endpoints and parameters, helping developers understand available features and implement them correctly without extensive trial and error.

Analysis of ZIP Code API

Overall verdict

  • ZIP Code API from zip-codes.com is a solid, reliable choice for developers and businesses needing accurate US and Canadian postal code data, offering a straightforward RESTful interface with regularly updated databases.

Why this product is good

  • Provides accurate and frequently updated ZIP code, city, state, and geographic data
  • Offers a simple RESTful API that is easy to integrate into web and mobile applications
  • Supports features like ZIP code lookup, radius search, and distance calculations
  • Includes both US ZIP codes and Canadian postal codes for broader coverage
  • Backed by an established data provider with a long track record in postal data

Recommended for

  • Developers building address validation or autofill features
  • E-commerce platforms needing shipping and location-based calculations
  • Businesses performing geographic or radius-based store locators
  • Applications requiring reliable US and Canadian postal data
  • Marketing and logistics teams that need regional or demographic targeting

Markup.io videos

+ Add

Client Introduction to Using Markup.io for Website Feedback

More videos:

  • Review - Meet MarkUp.io. Visual commenting, made easy.
  • Demo - MarkUp.io - Live Website Project Demo and Comment vs Browse
  • Demo - MarkUp.io Makes Feedback Simple [commercial]

ZIP Code API videos

No ZIP Code API videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Markup.io and ZIP Code API)

Markup.io

ZIP Code API

Customer Feedback
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Customer Feedback
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Zip Lookup
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Zip Lookup
100% 100
Visual Feeback
100 100%
Visual Feeback
0% 0
APIs
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APIs
100% 100

User comments

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What are some alternatives?

When comparing Markup.io and ZIP Code API, you can also consider the following products

Ruttl - ruttl is the fastest website feedback tool to add comments & make edits on live websites & web apps, so that you can give precise change values to your developers. You can also collect feedback from your clients without login or sign-up!

Smarty - Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.

Marker.io - Visual feedback and bug reporting tool for websites

Zipcodestack - Free Zip Code API - Free Postal Code Validation | Zipcodestack

BugHerd - BugHerd: The Website Feedback Tool for Agencies

PostalDataPI - The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.

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