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Free planCode
Syntha AI README Generator is a free web tool that uploads code files and produces README.md sections such as installation, usage, API, testing, and license with live preview. It supports many programming languages and markets itself as 100% free on the tool page.
Free tier unknownImages
Synthace provides a digital experiment platform for biotechnology labs to design, automate, and analyze high-dimensional wet-lab workflows. The company emphasizes AI-ready datasets, DOE methods, and cloud-connected automation for faster discovery biology.
Free trialAssistant
SynthAnswer AI is a browser extension and web app that captures homework screenshots and returns step-by-step explanations for students and parents. It supports text, math, images, and multiple-choice prompts with a family-focused privacy message and a short free trial.
Free planResearch
Synthea is an open-source synthetic patient population simulator that generates realistic but fictional health records across a lifetime of care. It outputs FHIR, CCDA, CSV, and related formats for research, Health IT development, and policy simulation without using real patient data.
Free planVideo
Synthesia is an AI video platform for business with lifelike avatars, document-to-video generation, dubbing, translation, screen recording, and interactive training roleplays powered by a shared credits system across features.
Free trialAssistant
Synthesis Tutor is an adaptive K-5 math tutor that converses with children, adjusts lessons in real time, and covers counting through early algebra with multisensory manipulatives. Families subscribe monthly, annually, or via a lifetime plan for up to seven kids.
Free tier unknownVoice
Synthesizer V Studio from Dreamtonics is a fully controllable AI singer plugin for music production, offering realistic vocal synthesis and studio-oriented editing. The public product page markets Synthesizer V Studio 2 Pro for creators who need programmable virtual singers.
Free tier unknownVideo
Synthesys is an AI video and voice platform for marketing teams, combining a video agent, Studio generators, avatars, dubbing, and ad formats. Pricing sells Starter through Max plans with monthly credits for UGC-style ads, faceless stories, and commercial-ready exports.
Free tier unknownImages
Synthetik Software publishes Studio Artist, an AI art and animation environment with paint synthesizers, vectorization, rotoscoping, and generative presets. The purchase page states Studio Artist is no longer sold while the next-generation product is in development.
Free tier unknownVoice
Synthflow AI is an enterprise voice agent platform that automates inbound and outbound phone conversations with human-like AI agents. The public site focuses on customer service, reception, appointment booking, and CRM-connected call workflows sold via enterprise contracts.
Free tier unknownAssistant
Synthio Labs provides an agentic AI platform for life sciences customer engagement, spanning HCP and patient voice agents, field copilots, simulation studios, and data intelligence products. The company emphasizes compliant, continuous conversations across commercial pharma workflows.
Free planVideo
SynthLife helps creators build virtual influencers and publish TikTok and Instagram videos using an AI persona without filming themselves. The homepage advertises free credits to start, one-click social clips, and optional paid upgrades.
Free tier unknownResearch
Syntho is a synthetic test data management platform for generating, masking, and sharing privacy-safe datasets. Pricing is feature-based with Basic, Standard, and Ultimate tiers quoted through sales rather than self-serve checkout.
Free to startAssistant
SyntrofAI markets an AI workforce that delivers finished research, prospect lists, and operational work on a schedule through WhatsApp, Telegram, or email. Prospects book a call, receive a first result free, then pay a fixed monthly fee per solution.
Free trialVoice
Syrenn provides AI sales roleplay and live call enablement so reps practice with simulated buyers and get real-time feedback. Paid Personal and Business plans add unlimited roleplays, analytics, and live-selling features after a seven-day trial.
Free planWriting
Systeme.io is an all-in-one online business platform with funnels, email marketing, websites, courses, communities, and CRM on a single account. Public pricing offers a free tier plus Startup, Webinar, and Unlimited paid plans billed monthly or annually.
Free planAssistant
systemprompt.io provides enterprise AI governance on self-hosted infrastructure, connecting coding and desktop agents to a control plane for policy enforcement, secrets, audit, and custom runtime extensions.
Free tier unknownAssistant
SYSTRAN provides secure enterprise machine translation for text, documents, and speech in 55+ languages with on-premise server, cloud, and professional services options for regulated industries.
Free tier unknownResearch
Merchants request tailored demos rather than buying through public self-serve pricing.
Free planImages
T-Rex Label is a browser-based AI annotation platform for computer vision datasets with zero-shot detection, cross-image propagation, and export to common ML formats. The English site emphasizes free start options and enterprise contact for larger deployments.
Free tier unknownImages
Vexels T-Shirt Maker is an online custom T-shirt design tool backed by a large graphics library for print-on-demand sellers. The page promotes creating designs with 100,000+ assets for Merch by Amazon, Redbubble, and similar POD channels.
Free to startResearch
T0 AI Directory (T0AI) is a curated listing site for discovering and submitting AI tools across categories such as writing, image, code, voice, and video. It offers paid one-time submission packages for founders who want permanent multilingual listings and optional homepage features.
Free tier unknownAssistant
T3 Chat is hosted at t3.chat as a Vercel-deployed chat product.
Free planCode
Tabby is an open-source, self-hosted AI coding assistant with inline chat, code completion, and an answer engine for developers. Cloud pricing adds a free Community tier and a Team plan at $19 per seat per month for larger deployments.
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