📖 The AI Tool Bible

AI tools tagged Free Trial 30d

48 tools matching this tag.pricing

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16x Prompt

Coding · Multi-model (BYO key)

Desktop prompt-composer for AI coding that bundles repo context, diffs, and multi-model comparison.

Freemium· Free: 10 prompts/day; paid individual and team licensesprompt-engineeringai-pair-programming

A2A Protocol

Agents

Open standard for letting AI agents from different frameworks talk to each other.

Free· Free and open source (Apache 2.0)multi-agent-systemsagent-interop

AI Boost

Image Generation · Multi-model

Mobile-first AI photo and video editor with face swap, avatars, and text-to-art generation.

Freemium· Free download with in-app purchase subscriptionface-swapai-avatars

AI Dungeon

Writing · Multi-model (rotating open-weights: Mixtral, Llama, Hermes variants)

AI-powered text adventure platform where the story is generated turn-by-turn by an LLM.

Freemium· Free tier; paid tiers roughly $10-$30/mo (Adventurer / Champion / Mythic)interactive-fictionai-roleplay

AI Horde (Stable Horde)

Image Generation · Stable Diffusion (SD 1.5, SDXL, community checkpoints) + open LLMs

Crowdsourced, volunteer-run cluster for free Stable Diffusion image and LLM text generation.

Free· Free; optional Kudos earned by donating GPU time or purchased via Patreontext-to-imageimg2img

AI Photo Forge

Image Generation · Fine-tuned diffusion (likeness LoRA)

Telegram-native AI headshot generator that turns selfies into professional portraits inside a chat thread.

Paid· Credit/pack-based (per headshot batch)ai-headshotslinkedin-portraits

AI Poem Generator

Writing

Free single-purpose web app that turns a one-line prompt into a rhyming poem.

Free· Free, no signuprhyming-poemsgreeting-cards

AI Prompt Genius

Writing

Open-source Chrome extension for building a searchable, tagged library of reusable AI prompts.

Free· Free and open-sourceprompt-libraryprompt-templates

AI Prompt Genius

Writing

Open-source Chrome extension that turns your browser into a searchable, taggable prompt library for any AI chatbot.

Free· Free and open-sourceprompt-managementprompt-library

AI SDK

Coding · Multi-model

Vercel's open-source TypeScript framework for building AI apps across 16+ providers with unified streaming, tools, and UI hooks.

Free· Open source (Apache 2.0); pay only for the underlying model APIschat-uiagent-building

AI Song Maker

Audio · Multi-model (ACE-Step, MusicGen, DiffRhythm, Riffusion)

Browser-based song generator that wraps multiple open music models behind a single freemium UI.

Freemium· Free: 4 songs/day anon, 20 credits/day signed-in; paid tier for moretext-to-songlyrics-generation

AI Watermark Remover

Image Generation

Free browser-based watermark eraser that inpaints brushed-over regions in photos.

Free· Free, no signup requiredwatermark-removalobject-removal

AI Wedding Toast

Writing

Free AI speech generator for best men, maids of honor, and parents who froze at the blank page.

Free· Free, no credit cardwedding-speechbest-man-toast

AI-Flow

Agents · Multi-model (OpenAI, Anthropic, Google, Replicate, xAI)

Visual node-based builder for chaining OpenAI, Anthropic, Replicate and other model APIs into content pipelines.

Freemium· Free tier: 25 welcome credits + 20 BYOK runs/day; paid plans for extended storageworkflow-automationcontent-pipelines

AI/ML API

Coding · Multi-model (GPT, Claude, Gemini, Grok, Nemotron, Qwen, etc.)

Unified API gateway exposing 500+ AI models behind one OpenAI-compatible endpoint.

Freemium· Pay-as-you-go from $20 prepaid credit; enterprise custommulti-model-routingprototyping

AI2sql

Coding

Natural-language-to-SQL generator with desktop app, MCP server, and governed read-only access.

Freemium· Free tier (100 queries); Start $5/mo, Pro $11/mo, Team $23/mo; 7-day trialtext-to-sqlquery-optimization

AICaller

Agents

Automated outbound phone-calling platform using hyper-realistic AI voices for lead qualification, scheduling, and surveys.

Paid· Build $49/mo (300 credits); Grow $499/mo (4,000 credits); Enterprise usage-based at $0.12/creditoutbound-callinglead-qualification

AICamp

Writing · Multi-model (GPT-5.2, Claude 4, Gemini)

Team workspace that puts GPT, Claude, and Gemini behind one admin console with shared prompts, agents, and usage controls.

Freemium· Starter free (3 users, $5 credits); Business $10/user/mo; Enterprise customteam-ai-workspacemulti-model-chat

AISaver

Video · Multi-model (Nano Banana Pro, Kling AI, Seedance 2.0)

Browser-based face swap and AI video/image generator stitched together from third-party models.

Freemium· Free credits on signup; paid credit top-ups (pricing not displayed on homepage)face-swapimage-to-video

AIVA

Audio · Proprietary (AIVA)

AI music composition tool that generates royalty-friendly tracks in 250+ styles with editable MIDI output.

Freemium· Free; Standard ~€11/mo, Pro ~€33/mo (billed yearly)music-generationsoundtrack-composition

AInterview

Audio

AI host that interviews you and turns the conversation into a finished podcast.

Freemium· Free 10 min/mo; Premium $19/mo (2 hrs); pay-as-you-go $0.13-$0.20/minai-podcast-hostsolo-podcasting

Adzooma

Agents

PPC management dashboard with AI-assisted audits and ad-copy optimization across Google, Microsoft, and Meta.

Freemium· Free forever plan; paid tiers not publicly listedppc-managementad-copy-optimization

Agent Lightning

Agents · Multi-model

Microsoft's open-source trainer that fine-tunes AI agents with RL and prompt optimization, framework-agnostic.

Free· Free, MIT-licensed open sourceagent-trainingreinforcement-learning

Agent Skills

Agents · Model-agnostic

Open format for packaging procedural knowledge and workflows that AI coding agents load on demand.

Free· Free open standardagent-extensionscoding-agents

AgentGPT

Agents · GPT-3.5 (BYO key for others)

Browser-based autonomous AI agent builder that chains GPT calls toward a goal you define.

Freemium· Free tier with limited monthly runs; paid plans for higher usageautonomous-agentstask-automation

AgentMail

Agents

API-first email provider purpose-built for autonomous AI agents.

Freemium· Free (3 inboxes); Developer $20/mo; Startup $200/mo; Enterprise customagent-emailinbox-provisioning

AgentMemory

Agents · Multi-model (Claude, Gemini, MiniMax, OpenRouter)

Open-source persistent memory runtime for AI coding agents, with hybrid retrieval and zero external dependencies.

Free· Free, open-source (Apache 2.0); bring your own LLM API keyagent-memorycoding-agents

AgentOps

Agents · Multi-model

Observability and debugging platform purpose-built for AI agents, with time-travel replay and cost tracking across 400+ LLMs.

Freemium· Free up to 5,000 events; Pro from $40/mo; Enterprise customagent-observabilityllm-tracing

Agenta

Evaluation · Multi-model

Open-source LLMOps platform for prompt engineering, evaluation, and observability in one workspace.

Freemium· Open-source self-host free; managed cloud has free tier plus paid plansprompt-engineeringllm-evaluation

AgenticSeek

Agents · Bring-your-own local LLM (Ollama / llama.cpp compatible)

Open-source local-first AI agent that browses the web, writes code, and runs tasks without sending anything to the cloud.

Free· Free and open source; optional SerpApi key for enhanced searchlocal-ai-agentautonomous-web-browsing

Agentset

RAG · Multi-model (Claude, OpenAI, Google, xAI, Cohere, Mistral, DeepSeek)

Production-ready RAG infrastructure with agentic search, citations, and model-agnostic plumbing.

Freemium· Free 1K pages/10K retrievals; Pro $49/mo + $0.01/page; Enterprise customdocument-qaagentic-search

Agno (formerly Phidata)

Agents · Multi-model

Open-source Python framework for building multi-agent systems, paired with a production runtime that ships in your own cloud.

Freemium· Framework free/OSS; AgentOS paid (see pricing page)

Aidbase

Agents · OpenAI

AI-powered customer support stack purpose-built for SaaS startups, bundling a trained chatbot, ticketing, and knowledge base.

Freemium· 7-day free trial, no credit card; paid plans thereaftercustomer-supportai-chatbot

Aispect

Image Generation

Turns live audio at events into AI-generated visuals on the fly, in 30+ languages.

Freemium· 5 free credits; PAYG $12.50/30 credits; Basic $34.90/mo (100 credits); Pro $149.90/mo (500 credits)live-event-visualsspeech-to-image

AlpacaEval

Evaluation · GPT-4 Preview (Nov 2024) as annotator

Automatic LLM evaluator and leaderboard that benchmarks instruction-following with length-controlled win rates.

Free· Free and open-source; pay only for the underlying OpenAI annotator API callsllm-benchmarkinginstruction-following eval

Amazon Q

Coding · Multi-model (Amazon Bedrock)

AWS's enterprise AI assistant for developers, analysts, and knowledge workers, wired into your company data.

Freemium· Free tier; Q Developer Pro $19/user/mo; Q Business Lite $3, Pro $20/user/mocode-generationenterprise-search

Amazon Q Developer

Coding · Multi-model (Amazon proprietary + partners)

AWS's in-IDE coding assistant and agent, formerly CodeWhisperer, tuned for cloud-heavy workflows.

Freemium· Free tier; Pro $19/user/monthcode-completionagentic-coding

Amazon SageMaker

Agents · Multi-model

AWS's end-to-end platform for building, training, and deploying machine learning models and AI agents at enterprise scale.

Paid· Pay-as-you-go; free tier available for new AWS accountsmodel-trainingmodel-deployment

AnkiDecks AI

Writing

AI flashcard generator that turns PDFs, slides, YouTube videos and handwritten notes into Anki-ready decks.

Freemium· Free plan: 4 decks/month; Pro plan for larger files and unlimited decks (price on pricing page)flashcard-generationspaced-repetition

AnythingLLM

RAG · Multi-model

Open-source desktop and self-hosted app that turns your documents into a private chat-and-agent workspace.

Freemium· Desktop free (MIT); self-host free; cloud paid plansdocument-chatprivate-rag

Anyword

Writing · Multi-model

AI marketing copy platform that scores and predicts content performance before you publish.

Paid· Starter $49/mo; Data-Driven $99/mo; Business & Enterprise custom; 7-day free trial (2,500 words)ad-copyemail-marketing

Apache Mahout

Coding

Open-source ML framework pivoting toward scalable quantum computing primitives.

Free· Free, Apache-2.0 licensedquantum-circuitshybrid-ml

Apache SINGA

Fine-tuning

Apache-licensed distributed deep learning library focused on scalable training across GPUs and nodes.

Free· Free, Apache 2.0 licenseddistributed trainingdeep learning research

Apple Intelligence

Writing · Apple Foundation Models + Private Cloud Compute; optional ChatGPT

Apple's on-device AI layer baked into iOS, iPadOS, macOS, and visionOS with a rebuilt Siri, writing tools, and image generation.

Free· Free with supported Apple hardware; no subscriptionwriting-assistancesummarization

Archon

Agents · Multi-model (Claude Code, Codex, others)

Open-source orchestration layer for running multiple AI coding agents in parallel git worktrees.

Free· Free and open source; bring your own model API keysparallel-coding-agentsworkflow-orchestration

Arena AI

Evaluation · Multi-model

Head-to-head LLM battle arena with a public leaderboard for ranking AI models.

Free· Free to use; no public paid tier listedllm-benchmarkingmodel-comparison

Argil

Video · Proprietary avatar model; integrates VEO3 and Hailuo for AI Fictions

AI avatar video generator that clones your face and voice from a single photo and a minute of audio.

Paid· 5-day trial; Classic $39/mo, Pro $149/mo, Scale $499/mo, Enterprise customai-avatarstalking-head-video

Arize AI

Evaluation · Multi-model

Enterprise observability and evaluation platform for LLM agents and generative AI applications.

Freemium· Free tier and OSS Phoenix; paid/enterprise tiers via salesllm-observabilityagent-evaluation