Audio hosting with an embeddable player. Up to 3 hours of content is free.

Audio hosting with unlimited uploads and an embeddable player.

You can embed any song, album, or playlist with a Spotify Play Button.

Allows you to access any of the Goodreads data. Widgets are found on the widgets tab on your settings page.

Allows to retrieve book data from the biggest books open dataset on Earth, without any tracking.

Embeddable calendar that you can collaborate with other people.

Beautiful embeddable booking widget.

Paid - Online scheduling for fitness.

Online photo hosting by Yahoo.

Image hosting, manipulation and delivery.

Google maps are easily embeddable.

Really nice looking embeddable maps.

Create and embed personalized maps, based on the great OpenStreetMap dataset.

Online presentations with really transitions that can zoom and rotate.

HTML presentation framework.

A place for creating, presenting and sharing slide decks.

Upload your slides as a PDF, and get an online, shareable presentation.

Paid - An API to play videos directly to the client. Can also power live streams.

Embeddable videos with unlimited uploads.

Paid - Embeddable videos with no ads.

Embeddable music videos.

Free plan has a limit of 25 videos.

A playground of embeddable front-end code examples.

Embeddable front-end code examples.

Embeddable front-end code examples.

Syntax highlighting for the web.

A privacy-friendly solution to embed front-end code examples.

Deploy your backend in seconds. Free tier included. Open source.

AWS Lambda lets you run code without provisioning or managing servers. You pay only for the compute time you consume

Create single-purpose, stand-alone functions that respond to Cloud events without the need to manage a server or…

Call code on the server with simple HTTP, easier to set up by far than Lambda or Google's

by Microsoft - same premise as Lambda on the Azure cloud

by Iron.io - Run code in a multilanguage containerized environment with unlimited scale and simple pricing

by Iron.io - IronFunctions is an open source serverless computing platform for any cloud - private, public, or hybrid.

part of their BlueMix hosting platform, and open source, ties into their Watson AI ecosystem nicely

Write functions as a service in the language of your choice and deploy them to a global network of data centers. All…

Build and deploy static websites to your own cloud account.

Vercel lets people write functions as a service in their language of choice and deploy as part of a monorepo.

Full-stack static app hosting including serverless Functions, authentication, CDN and more

Full stack app hosting with data storage included, similar to Heroku with a developer centric approach. Free to use up…

Autocode turns functions into scalable web services in an instant, no configuration required; serverless hosting…

Serverless GraphQL database. Free tier with no time limit. Easily included in Netlify apps.

Staticman is a Node.js application that receives user-generated content and uploads it as data files to a GitHub…

Easily embeddable comments with nested replies, multiple login methods, and email notifications.

Embeddable comments for your site by Facebook.

Embeddable comments with nested replies, multiple login methods, and email notifications.

Real-time comments, SEO-optimized, stocked with social features, and beautiful on both desktop and mobile.

Embed Reddit comments on your site. If it hasn't been posted, it will show a link to encourage the user to submit.

Embeddable comments, forum and private messaging. A lot of functionality, but really low footprint left on your website.

Comment system based on GitHub Issues, which can be used in the frontend without any server-side implementation.

A comments widget built on GitHub Discussions.

A lightweight comments widget built on GitHub issues.

Receive emails from a form on your static website.

Simple form processing and response retrieval via email.

Simple form processing and response retrieval via email.

Simple form submissions via email with optional attachments.

Simple forms with optional file attachments, email notifications, and online submission viewing.

Free form submission service emails you responses while keeping your email address private and is open source.

Form endpoint service with email/Slack notifications and third party app integrations (e.g. MailChimp)

Form backend platform for designers and developers, with email and integrations.

Free, easy-to-use drag & drop form maker capable of crafting powerful online forms. Includes 40+ field types,…

Backend to handle form submissions easily and reliably, with email notifications, file uploads and GDPR-compliant data…

Hassle-free HTML form endpoints for your form, powerful dashboard, reliable spam blocking, attachment uploads and…

The form backend built for developers: Zapier integrations, simple endpoint API, unlimited forms.

Saves results into Google Sheets and can email you when there is a submission.

Paid - View form submissions in a beautiful web interface. It has spam filtering and it integrates with webhooks such…

Connects to other online services such at MailChimp, Salesforce, and Google Drive. It also integrates with payment…

Allows you to build any kind of form that can include complex branching logic and multiple pages.

Form builder with payments and form management.

Forms with A/B testing, partial submission, analytics, and integrations.

POST and GET your data to Google Spreadsheet.

Awesome forms that can be embedded.

Free or Paid - Forms that you can build with a form designer, with notifications, reports, and payments.

Forms with file upload and captcha.

This is an interesting way for developers to get comments/questions. See github.com/sindresorhus/ama for an example.

A lightweight comments widget built on GitHub issues.

Create form-backends and submit your HTML forms to our backend. View the entries online and connect to other services.…

A flexible server / backend for HTML forms. View your data in the realtime web interface, or use the API to get CSV…

Forms and email marketing (lead collection, email campaigns, and newsletters) with integrations.

Modern forms for static sites, with native support for React.

Turn a Google Spreadsheet into a JSON API.

Post your HTML form to Form2Channel to store submissions in Google Sheets and receive them via email, Slack or…

reCAPTCHA and hCAPTCHA token verification service. Post your form to reCAPTCHAme to avoid getting spammed. Made for…

Conversational forms with unlimited responses that can be embedded on any website.

Netlify comes with built-in form handling.

JivoSite is a professional live chat for websites that was specifically designed to increase your online sales.

Live chat on your website.

Live chat on your website. You can also see who's on your website and what they're doing.

Live chat with integrations and custom styles.

Lets you monitor and chat with visitors on your website.

Live chat for your website & social networks.

Live chat with free trial.

Free Live Chat with open source chatbot builder.

Free email marketing. You can pay to add more features.

Email marketing with campaigns, autoresponders, and analytics.

Email marketing with campaigns, autoresponders, and analytics.

Email marketing with campaigns, autoresponders, and analytics.

Free email marketing. You can pay for more subscribers.

Pin It Button.

Embedded tweets.

Facebook embedded plugins.

Sharing buttons for multiple social networks.

A contact widget that provides an easy way for visitors to get in touch.

You can use Google forms for surveys or for forms on your site.

Easy to use and free surveys.

Awesome forms that can be embedded.

Embed surveys anywhere on your website that comes up from the bottom right side of the screen.

Fast, Simple survey forms.

Conversational forms with unlimited responses that can be embedded on any website.

Embeddable shopping cart.

Add a shopping cart with basic html code.

Include a few lines of code for a full online shop.

An all-in-one solution to sell your work.

An embeddable way to sell digital downloads & memberships

Add eCommerce functionality to anything.

Add a popup cart to any website - designed for static & JAMstack sites.

Add enterprise ecommerce to your JAMstack.

Website payments and donations using Bitcoin (Satoshi's Vision).

Accept payments using various cryptocurrencies.

Simple full-text search in your browser.

Full text, faceted, almost dependency free search engine in javascript

Tiny and powerful JavaScript full-text search engine for browser and Node

Next-Generation full text search library for Browser and Node.js

Powerful, lightweight fuzzy-search library, with zero dependencies

A Go program to generate JSON index of HTML files, and a JavaScript component with optional UI to search this index

Lightweight full-text search engine developed in JavaScript for browser search and offline search based on Lunr.js

Tiny, full-text search engine for static websites built with Rust and Wasm

Client-side searches of JavaScript and JSON objects, ES5 compatible and does not require jQuery or any other…

A persistent, network resilient, full text search library for the browser and Node.js

Tiny and blazing-fast fuzzy search in JavaScript

Fuzzy search / filter for browser and node

Javascript library that provides high-quality full-text search in the browser

Native CSS search engine

Static full-text search engine capable of handling thousands of pages with a minimalist searchbar UI to add to your…

Search your site with a custom Google Search.

Hosted Search API that delivers instant and relevant results from the first keystroke.

Powerful search for your website with a few lines of JavaScript.

Freemium web analytics service offered by Google.

💲 - Simple, clean, and friendly analytics.

Serverless, passwordless login for static sites in 2 lines of code.

A privacy-first, browser-based batch image processor for static site creators, leveraging WebAssembly for local…

Embeddable 3D content.