Software Alternatives, Accelerators & Startups

Radius.to VS s3-lambda

Compare Radius.to VS s3-lambda and see what are their differences

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Radius.to logo Radius.to

Build real-world communities and find things happening around you. A Meetup and Eventbrite alternative.

s3-lambda logo s3-lambda

Lambda functions over S3 objects: each, map, reduce, filter
  • Radius.to Radius
    Radius //
    2026-08-24
  • Radius.to Radius - Landing Page
    Radius - Landing Page //
    2026-08-24
  • Radius.to Radius - Event Page
    Radius - Event Page //
    2026-08-24
  • Radius.to Radius - Group Page
    Radius - Group Page //
    2026-08-24
  • Radius.to Group Search
    Group Search //
    2026-08-24
  • Radius.to Event Details
    Event Details //
    2026-08-24
  • Radius.to Activity feed
    Activity feed //
    2026-08-24
  • Radius.to User dashboard
    User dashboard //
    2026-08-24
  • Radius.to Group map
    Group map //
    2026-08-24

Radius is a free, modern alternative to Meetup and Eventbrite. Create groups, host events, and find communities nearby — no ads, no algorithms, no organiser fee for groups up to 50 members.

  • Beautiful group and event pages, set up in minutes
  • RSVPs, waitlists, recurring events, and guest checkout (no account needed)
  • Discussions, messaging, calendar feeds, and member exports
  • Search and map discovery, plus automatic listing on Google Events
  • Joining and attending is always free. 500+ communities, 3,000+ events, 120+ cities.
  • s3-lambda Landing page
    Landing page //
    2022-11-04

Radius.to features and specs

  • Event API
    Create events in your group via our free API
  • RSVP
    Allow users to RSVP to events
  • User accounts
    Create your profile, join groups, and RSVP to events.
  • Discoverability
    Be found more easily, and find groups which interest you.
  • Quick event creation
    Quick create - copy metadata from previous events
  • Event status & visibility
    Make use of flexible event modes like draft and unlisted.
  • Group invitations
    Easily migrate from other platforms by mass inviting users.
  • Export data
    Export emails of event attendees and group members, or a full data export of your group
  • External tickets
    Add a ticket button to your event if you want to add external ticketing
  • Event attendance limits
    Automatically shut off RSVPs.
  • Private groups
    Private Groups for organizers on Pro
  • Group theme
    Change your group and event page colours
  • Related groups
    Link related groups and form a network to allow your group to be found by others more easily

s3-lambda features and specs

  • Batch processing of S3 objects
    s3-lambda provides a straightforward way to perform batch operations on large numbers of S3 objects, enabling map, filter, and reduce-style processing over entire S3 buckets or prefixes without writing boilerplate code.
  • Familiar functional API
    The library uses a functional programming paradigm with operations like map, filter, and reduce, making it intuitive for JavaScript developers to process S3 objects using patterns they already know.
  • Built-in concurrency control
    s3-lambda handles parallel processing of S3 objects with configurable concurrency, allowing users to control how many operations run simultaneously and avoid overwhelming AWS resources or hitting rate limits.
  • Context-aware operations
    The library provides a context object within each operation that includes useful metadata about the current object being processed, simplifying access to S3 object properties during transformations.
  • Easy integration with Lambda
    Designed to work seamlessly within AWS Lambda functions, making it straightforward to set up event-driven, serverless pipelines for processing large volumes of S3 data without managing infrastructure.

Possible disadvantages of s3-lambda

  • Unmaintained project
    The repository appears to be no longer actively maintained, with limited recent commits and unresolved issues, which raises concerns about long-term reliability, security patches, and compatibility with newer AWS SDK versions.
  • Limited documentation
    The project's documentation is relatively sparse, lacking comprehensive examples, edge case handling guidance, and detailed API references, which can make it challenging for new users to adopt effectively.
  • AWS SDK version dependency
    The library depends on an older version of the AWS SDK for JavaScript, which may conflict with projects using the newer AWS SDK v3 and could miss out on performance improvements and features in updated SDKs.
  • Limited error handling flexibility
    The built-in error handling mechanisms are relatively basic, and handling partial failures or implementing sophisticated retry logic for individual object operations requires additional custom code from the developer.
  • Narrow scope of functionality
    The library is tightly focused on S3 object processing and does not integrate with other AWS services or provide utilities beyond basic map/filter/reduce operations, limiting its usefulness in more complex data pipeline scenarios.

Analysis of Radius.to

Overall verdict

  • Radius.to is a URL shortening and link management service that offers basic functionality for creating shortened links, though it lacks the advanced features and brand recognition of major competitors like Bitly.

Why this product is good

  • Provides simple, straightforward URL shortening functionality
  • Free to use for basic link shortening needs
  • Generates quick, compact links suitable for sharing
  • Low barrier to entry with no complex setup required

Recommended for

  • Users who need occasional, basic link shortening without advanced analytics
  • Casual users sharing links on social media or in messages
  • Individuals looking for a free, no-frills URL shortener
  • Not ideal for businesses needing detailed click tracking, custom branding, or enterprise-level link management

Analysis of s3-lambda

Overall verdict

  • s3-lambda is a useful Node.js library for performing operations like map, reduce, and filter directly on S3 objects using Lambda, making it good for developers who need efficient, serverless-based batch processing of S3 data without managing infrastructure. It is well suited for smaller to medium projects but may not be actively maintained for enterprise-scale needs.

Why this product is good

  • Simplifies common S3 batch operations (map, filter, reduce) with a clean, functional API
  • Leverages AWS Lambda for scalable, serverless parallel processing of S3 objects
  • Reduces boilerplate code for iterating over and transforming large numbers of S3 objects
  • Open-source and free to use, allowing customization for specific workflows
  • Integrates well with existing AWS infrastructure and Node.js applications

Recommended for

  • Developers building serverless data pipelines on AWS
  • Teams needing to process or transform large sets of S3 objects without provisioning servers
  • Node.js developers looking for a functional programming approach to S3 operations
  • Projects with batch processing needs that fit within Lambda's execution limits
  • Prototyping or small-to-medium scale ETL tasks involving S3 data

Category Popularity

0-100% (relative to Radius.to and s3-lambda)
Event Management
100 100%
0% 0
Databases
0 0%
100% 100
Community Platform
100 100%
0% 0
Database Tools
0 0%
100% 100

Questions & Answers

As answered by people managing Radius.to and s3-lambda.

What makes your product unique?

Radius.to's answer

An alternative to Meetup, with a free plan. Control your group data with easy export.

User comments

Share your experience with using Radius.to and s3-lambda. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, Radius.to seems to be more popular. It has been mentiond 2 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.

Radius.to mentions (2)

  • Ask HN: What Are You Working On? (February 2026)
    Https://radius.to/ - a Meetup.com alternative of sorts - with fairer organiser pricing for smaller groups. I posted a Show HN [1] here a while back, got tons of great feedback, and have been slowly improving it since, with little marketing. Planning a re-launch here soon. [1] https://news.ycombinator.com/item?id=40717398. - Source: Hacker News / 7 months ago
  • Ask HN: How are you acquiring first 100 users?
    It's easier said than done, I suppose, but my first ~500 users for https://radius.to/ were from HN after hitting the front page. I'd imagine you'd get pretty good results on both ProductHunt and Reddit as well if you can get enough upvotes, though the latter is pretty difficult to promote your products on these days unless it's legitimately relevant to the community you post in. - Source: Hacker News / over 1 year ago

s3-lambda mentions (0)

We have not tracked any mentions of s3-lambda yet. Tracking of s3-lambda recommendations started around Mar 2021.

What are some alternatives?

When comparing Radius.to and s3-lambda, you can also consider the following products

Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.

Eventbrite - Discover Great Events or Create Your Own & Sell Tickets

Facebook Events - Facebook Events enables businesses to organize gatherings, manage invitations and send notifications and reminders to their audience.

Agentset.ai - The open-source RAG platform. Fully performant and with agentic superpowers.

TicketSource - Free, easy to use online ticketing for your events.

Mobilizon - A free and federated tool to get our events off Facebook