AI runtime and gateways
LiteLLM
Use it when several app features need shared model access and someone can maintain routing, usage records and access controls.
Tools Library — Page 17
Compare tools for building and running a web app. See what each one does, what it costs, and what you’ll need to set up.
Browse all tools
Showing 385–408 of 778 tools
Realtime and collaboration
Liveblocks
Consider it when you have an app and want to add shared editing without running the servers that pass edits between browsers.
Realtime and collaboration
LiveKit
Use it to build a call or a live session inside your app. Keep meeting notes, bookings and other records in your app’s own storage.
RAG and vector data
LlamaIndex
Consider it if your developers need to choose how documents are divided, stored and retrieved.
AI platforms
LM Studio
Use it when you want to see what a model can do on your own machine before choosing a hosted service.
Maps and location
LocationIQ
Use it when a person needs to find a place by its written address, then decide if the same screen needs a map or directions.
Error monitoring
LogRocket
Use it when a report like “Save stopped working” leaves you unsure which steps the person took or what the page showed.
Sign-in
Logto
Consider it when you want a separate sign-in service and need to check what different users can do in your app.
Localization and translation
Lokalise
Consider it when someone needs to review changes to app text and you want control over what goes into the next release.
Customer research
Lookback
Consider it when watching where a person hesitates and asking what they expected is more useful than counting clicks alone.
Product demos and video
Loom
Consider it when you want to show one person how a task works and send them a link instead of uploading a video to another service.
Email marketing
Loops
Use it when a person’s action or mailing-list choice should determine what they receive next.
Design assets, icons and fonts
LottieFiles
Compare it when you need to hand off a small animation and decide which file, player and permissions to ship.
App builders
Lovable
A fit when you want to build the customer’s whole task in one place and would rather choose outside services later.
Design assets, icons and fonts
Lucide
Consider it when you need a consistent visual cue alongside labels people can already understand.
Customer research
Lyssna
Consider it when you have a sketch or screen and want to check whether people find an action without guidance.
Voice AI
MacWhisper
Use it when you already have an audio or video file and want to listen, correct the words and export them.
Email marketing
Mailchimp
Consider Mailchimp if you need campaign tools and want to organize a brand’s contacts by the interests they opted into.
Business email
mailcow
Use it only when your team can run a server, look after delivery and recover mail if the server fails.
Email marketing
MailerLite
Consider MailerLite if you need a signup form and a few interest groups for one newsletter.
Transactional email
MailerSend
Consider it if you want to trace one receipt from your app’s send request to the result in the email activity log.
Transactional email
Mailgun
Consider it when you need to send from your own domain through an email API or your app’s existing mail settings.
Browser testing
Mailpit
Use it when you need to see what a confirmation message contains before connecting live mail delivery.
Transactional email
Mailtrap
Consider it when you want to check the recipient, subject and layout in a test inbox before setting up live delivery.