DeepSeek
generalOpen-weight LLMs including a 671B MoE model that matches GPT-4o at far lower API cost
With free tier general 239
Browse the best with free tier general tools on Listof.Best — 239 options, ranked by popularity. Compare features, pricing and alternatives at a glance.
Elai.io
generalAI video generator for training and tutorials
Riffusion
generalGenerative AI for creating and remixing music
LOVO
generalText-to-speech with 500+ voices in 100 languages
StealthWriter
generalRewrite AI-generated text to sound human
Napkin
generalTurn text into visual charts and infographics
Magiclight.AI
generalTurn text prompts into AI-generated videos
Colossyan Creator
generalCreate videos with AI actors
Superwhisper
generalVoice-to-text for Mac, Windows, iOS
SlidesAI
generalCreate slides from text instantly
Create Your Music With Brev AI Music Generator Free Online
generalGenerate music tracks with AI
Tolgee
generalApp translation with full context and human review
HumanizeAI.io
generalConvert AI text to natural, human-like writing
Pipiads
generalBrowse TikTok and Meta ads to find winning creatives
WriteHuman AI Humanizer Tool
generalRewrite AI text to read like human writing
Lara Translate
generalFast translations across multiple languages
The portfolio website builder for photographers, artists and designers
generalPortfolio platform with galleries and zero-commission sales
Letterly App
generalVoice-to-text transcription for notes and messages
Formula Bot
generalGenerate Excel formulas and analyze spreadsheets without coding
Type.ai
generalLong-form writing editor for storytellers
CoeFont Interpreter
generalReal-time speech translation with AI voices
Tiptap
generalOpen-source rich text editor framework with extensions
Meilisearch
generalFast, open-source search and AI retrieval engine
Deepmotion
generalConvert video to 3D animation instantly
This is a technically focused category aimed primarily at developers and ML engineers. Tools like Cognee and UpTrain address retrieval-augmented generation (RAG) pipelines and model evaluation, while platforms like Dstack and PeriFlow handle compute infrastructure for training and inference. Embedding Similarity Calculator and similar utilities fill narrow but useful gaps in LLM development workflows. OpenAssistant and Cerebras-GPT represent open-source or open-weight models that developers can run or fine-tune directly. When comparing options, consider whether a tool is model-agnostic or tied to a specific provider, and whether it supports the models you are already using. Latency, throughput, and cost-per-token are the metrics that matter most for production workloads. Evaluation tools are often underinvested in early projects but become critical once you are shipping to users. Many tools here are open source with paid managed versions, while others are closed SaaS products with usage-based pricing.