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General LLM tools include frameworks, APIs, evaluation utilities, and infrastructure specifically built around large language models. This category covers 369 tools that help developers build, test, fine-tune, and run applications on top of LLMs, from embedding calculators to full model-serving platforms.

AI Text Generator Free

general

Generate unique text for blogs, marketing, and writing projects

Free 38 · 64,455 votes

Superblog

general

Fast, SEO-ready blogging platform with zero maintenance

Free 38 · 59,382 votes

MemoriPy

general

Learn faster with spaced repetition and active recall

Free 37 · 46,407 votes

Story Path

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Generate story branches and plot ideas

Free 37 · 34,888 votes

Textbuddy

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AI writing tools for clear, human-like content

Free 36 · 30,790 votes

Botowski

general

AI content generation for businesses

Free 36 · 29,726 votes

The Best Handwriting OCR with latex equations

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Handwriting and math OCR

Free 36 · 25,904 votes

Satellitor

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Automatically write and publish SEO blog posts

Free 36 · 23,253 votes

Articly.ai

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Generate SEO blog posts automatically

Free 36 · 20,471 votes

MagicBlog

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Auto-generate and publish SEO blog content daily

Free 35 · 13,227 votes

Anifusion

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Generate manga pages from story descriptions

Free 32 · 61,151 votes

GPT Reader & Transcriber

general

Chrome extension for text-to-speech, speech-to-text, and dictation

Free 32 · 60,006 votes

Essay Typer

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Essay writer for academic assignments

Free 32 · 58,401 votes

Turn Your Videos Into Books, Lead Magnets & Sales Funnels

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Blueprint for converting videos and podcasts into books

Free 32 · 57,753 votes

Vexub

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Create short videos from text with AI

Free 32 · 53,443 votes

Thundr

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Free video chat with random people

Free 32 · 53,447 votes

Rayo AI Blog Writer

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Free AI blog writing tool

Free 32 · 52,886 votes

SpeedyAudios

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Convert WhatsApp audio messages to text

Free 31 · 34,576 votes

Symvol

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Transform complex ideas into consistent educational videos

Free 31 · 30,373 votes

aiausmalbilder

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Generate free printable coloring pages with AI

Free 31 · 28,492 votes

AI Song Generator

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Convert text descriptions into full songs

Free 30 · 27,673 votes

AI Voice Generator Bot

general

Text to speech with 25+ voices

Free 30 · 21,856 votes

DaVinci AI

general

Guide to using AI tools for content creation

Free 29 · 15,379 votes

KQBD

general

Live soccer scores and match schedules

Free 29 · 13,009 votes

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.