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This category covers tools built around large language models: infrastructure for deploying, fine-tuning, evaluating, and monitoring LLMs in production. With 369 tools listed, it is one of the more technical categories on the site, aimed primarily at developers and ML engineers rather than end users.

Elai.io

general

AI video generator for training and tutorials

Free 49 · 54,328 votes

Riffusion

general

Generative AI for creating and remixing music

Free 48 · 28,816 votes

TeeAI

general

Generate custom T-shirt designs from text or images

Free 38 · 59,743 votes

Esyblog

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Spreadsheet to published SEO articles

Free 38 · 56,679 votes

neoSVG

general

Convert text and images to SVG

Free 37 · 44,996 votes

Luma AI Video Generator Free Online

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Create videos from text prompts

Free 37 · 44,474 votes

Bookwiz

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Writing assistant for authors and novelists

Free 37 · 40,251 votes

Fine Pixel

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Upscale photos and create images from descriptions

Free 37 · 39,135 votes

AI Humanize

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Rewrite AI content to read like human writing

Free 37 · 38,078 votes

Humanize AI Text

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Converts AI text to match human writing style

Free 37 · 36,724 votes

TTSVox

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Text-to-speech with natural-sounding voices

Free 37 · 35,972 votes

Model Fusion

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Open-source framework for building AI applications

Free 37 · 35,524 votes

Flickify

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Convert articles and text to video

Free 35 · 17,686 votes

Image to Text Converter

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Extract text from images and scanned docs

Free 35 · 41,923 votes

Translate Images with OCR while Preserving Text Formats to 130+ Languages

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Translate images to 130+ languages while preserving formatting

Free 35 · 16,080 votes

Wordhero

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Write high-quality blog posts and content fast

Free 35 · 12,805 votes

GACOR25

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Online gaming platform

Free 35 · 13,140 votes

CassetteAI

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Music, sound effects, and speech generation on edge hardware

Free 34 · 7,148 votes

Stealthly

general

Rewrite AI text to pass human detection

Free 32 · 57,781 votes

Generador de Textos Inteligencia Artificial. Pruébalo Gratis

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AI text generation in Spanish

Free 32 · 57,327 votes

AI Sentence Rewriter

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Rewrite text for grammar and clarity

Free 32 · 54,040 votes

FluxPro AI

general

Image generation with Flux.1 models and LoRA support

Free 31 · 43,540 votes

Voice Out

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Read Google Docs, PDFs, and webpages aloud

Free 31 · 39,286 votes

Privee AI

general

Chat with custom AI characters and roleplay scenarios

Free 31 · 37,855 votes

LLM tooling has exploded alongside the models themselves, and the category now spans several distinct problem areas. Deployment and serving tools like PeriFlow and Dstack help teams run models efficiently at scale. Evaluation and observability tools like UpTrain and AIWatch track model quality, drift, and cost over time. Memory and retrieval tools like Cognee add persistent context or RAG capabilities to LLM applications. When choosing, the key questions are infrastructure fit (cloud, on-prem, or hybrid), model compatibility (OpenAI-only vs. open-weight models), and whether the tool addresses your actual bottleneck, whether that is latency, cost, accuracy, or developer velocity. Pricing structures vary: some tools charge per token processed, others per seat or per API call. Open-source options exist across most sub-categories, which is worth considering for teams with engineering capacity to self-host.