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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.

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AltText.ai

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AI alt text generator for images

Paid 43 · 53,696 votes

WordAi

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AI content rewriting and paraphrasing

Paid 42 · 42,649 votes

WriteHuman AI Humanizer Tool

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Rewrite AI text to read like human writing

Free 41 · 37,190 votes

The portfolio website builder for photographers, artists and designers

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Portfolio platform with galleries and zero-commission sales

Free 41 · 18,304 votes

AI Text Generator Free

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Generate unique text for blogs, marketing, and writing projects

Free 38 · 64,455 votes

LensAI advertising I Efficient monetization web traffic I Context advertising

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AI-powered ad creation with optimization for conversions

Free 38 · 64,304 votes

Orchard

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AI assistant with web search and file integration

Free 38 · 63,113 votes

AIHumanizer.ai

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Transform AI-generated content to read more naturally

Paid 38 · 59,630 votes

Superblog

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Fast, SEO-ready blogging platform with zero maintenance

Free 38 · 59,382 votes

Essay Writer App

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Write essays and homework with AI assistance

Free 37 · 54,885 votes

SVG.io Migration to PicTrix

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SVG.io to PicTrix migration guide and membership mapping

Paid 37 · 53,947 votes

Undetected

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Make AI-generated text read more naturally and less robotic

Paid 37 · 52,779 votes

MemoriPy

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Learn faster with spaced repetition and active recall

Free 37 · 46,407 votes

8arms.ai

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AI marketing content and campaign management

Free 37 · 44,649 votes

Realistic Text to Speech converter & AI Voice generator

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Generate realistic voiceovers and download as MP3 or WAV

Free 37 · 4,326 votes

Powered by GPT4o

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Convert text and ideas into slides instantly

Free 37 · 44,142 votes

Podfy.ai

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Convert text and audio into edited videos automatically

Paid 37 · 40,796 votes

AI App Icon Generator

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Generate app icons from text descriptions

Paid 37 · 39,221 votes

Colorway AI

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Colors line art sketches and turns them into finished illustrations

Paid 37 · 37,526 votes

Story Path

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Generate story branches and plot ideas

Free 37 · 34,888 votes

BEXI.ai

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Makes AI-generated text read like human writing

Paid 37 · 33,481 votes

Write My PRD

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Generate product requirement documents instantly

Free 36 · 31,557 votes

Textbuddy

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AI writing tools for clear, human-like content

Free 36 · 30,790 votes

Botowski

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AI content generation for businesses

Free 36 · 29,726 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.