TinyLetter
Sendy
MailChimp
MailerLite
Listmonk
GetResponse
Brevo
Mailman
Castmint
InVideo.io
Pictory
Fliki
StoryShort.ai
Zebracat AI
DALL-E
HeyGen
Castmint turns one typed line into a finished vertical short: AI script, voiceover, synced captions and visuals — ready to post on TikTok, YouTube Shorts and Instagram Reels.
The problem: short-form video is the highest-leverage format on the internet, but every single short costs an evening — scripting, recording a voiceover, syncing captions, hunting for visuals, cutting it vertical. That's why most channels go quiet.
What Castmint does: type a topic — "5 underrated productivity apps", "why your houseplants keep dying" — and Castmint assembles the whole thing:
Who it's for: faceless channels, creators who hate editing, and small brands that want to look active on TikTok, Reels and Shorts without a video team.
One input, whole pipeline: most tools automate a single step — voiceover, or captions, or stock clips. Castmint goes from a typed idea to a finished, publishable short in one pass, and still gives you a timeline editor for control.
Your first three videos are free, no card required.
TinyLetter CastmintNo Castmint videos yet. You could help us improve this page by suggesting one.
Castmint's answer:
Most AI video tools automate a single step — voiceover, or captions, or stock clips — and leave you to stitch the rest together yourself. Castmint goes from one typed line to a finished, publishable vertical short in a single pass: script, AI voiceover, synced captions and visuals, all in one automated flow. You still get a full timeline editor when you want to polish it by hand.
Castmint's answer:
Castmint removes the assembly work, not just one piece of it. You type an idea and get a complete short ready to post — no separate tools for scripting, voice, captions and editing. Your first three videos are free with no card required, so you can judge the output on your own topic before committing to anything.
Castmint's answer:
Faceless-channel creators, solo YouTubers/TikTokers who'd rather not be on camera, and small brands that want to post consistently on TikTok, Reels and Shorts without hiring a video team or an editor.
Castmint's answer:
Castmint started because the founder's own channel kept going quiet — not from a lack of ideas, but because every short cost an evening of scripting, recording, captioning and cutting. Castmint automates that whole pipeline, so one typed idea becomes a finished, ready-to-post short in minutes instead of hours.
Castmint's answer:
Built on Next.js and TypeScript, with AI generation powered by OpenAI, ElevenLabs and fal.ai.
Based on our record, TinyLetter seems to be more popular. It has been mentiond 8 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.
Https://tinyletter.com has worked well for me. - Source: Hacker News / almost 3 years ago
For those of you old enough to remember tinyletter.com, it was an extremely simplified newsletter creation tool that was eventually acquired by Mailchimp. I really appreciated the pure design and focus of this previous company that I decided to name my service tinynews.ai as an homage. Source: over 3 years ago
Tinyletter - I only heard about this source later on, so it wasn’t relevant, but I might’ve used it (note: it is part of Mailchimp). - Source: dev.to / over 4 years ago
For how to actively distribute the newsletters if you go the email route there’s several services (unless you’re cool with just whacking everyone’s email into a BCC list and sending manually, of course) you might find Tiny Letter useful. It’s 100% free and intended for exactly this sort of content and handles important things like unsubscribe functionality. That said is does seem to require a postal address that... Source: almost 5 years ago
Tinyletter.com — 5,000 subscribers/month free. - Source: dev.to / about 5 years ago
Sendy - Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES
InVideo.io - Create thumb-stopping videos in mins for just $10/month even if you've never edited a video before!
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Pictory - A month of social videos from long-form content in minutes
MailerLite - Affordable Email Marketing Software. Get all features (Segmentation, Automation, A/B testing) for up to 1,000 subscribers & send unlimited emails for free!
Fliki - Lifelike Text to Speech & Text to Video converter that helps you create audio and video content using AI voices in less than a minute.