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AI & Machine Learning

AI calculators, LLM tools, and machine learning utilities

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AI Image Prompt Builder

Turn a plain idea into a professional AI-image prompt. Click style, lighting, camera, mood and quality chips, then export perfectly formatted prompts for Midjourney, Stable Diffusion/SDXL, DALL-E 3 and FLUX.

FeaturedIntermediate

Private AI Image Generator (Stable Diffusion in Your Browser)

Generate images from text prompts with Stable Diffusion (SD-Turbo) running entirely in your browser via WebGPU. Prompts and images never leave your device — no API key, no uploads.

FeaturedIntermediate

AI Agent Task Router

AI Agent Task Router helps review AI operations inputs locally with private local analysis, browser-side previews, and optional cached model upgrades.

Intermediate

AI Background Remover

Remove image backgrounds instantly in your browser — no upload, no signup, no watermark. Get a transparent PNG, solid-color, or blurred background, with the AI model running entirely on your device so your photos never leave it.

Intermediate

AI Coding Agent Setup Generator

Generate copy-paste config to point Qwen Code, Aider, Continue.dev, Cline, the OpenAI Python SDK, or curl at any OpenAI-compatible endpoint — your local LLM via Ollama or llama.cpp, or any compatible backend. Pick a model preset, set your base URL and API key, and get the exact setup. Runs in your browser.

Intermediate

AI Embedding Cost Calculator

Estimate the total token count and API cost to embed a document corpus using OpenAI, Cohere, or Voyage embedding models.

Beginner

AI Flashcard Generator

Turn study notes into flashcards with private, in-browser AI — your notes never leave your device.

Intermediate

AI GPU Buying Guide: Best GPU for Running Local LLMs

Pick the right GPU for running local LLMs. Choose your target models, quantization, and minimum speed, and get a ranked GPU table with VRAM fit, estimated tokens/sec, and real community benchmark data — all computed in your browser.

Beginner

AI Image Moderation Preview

AI Image Moderation Preview helps review AI operations inputs locally with private local analysis, browser-side previews, and optional cached model upgrades.

Intermediate

AI Quiz Generator

Turn any chapter or notes into a practice quiz with instant scoring and explanations — generated by a private AI that runs entirely in your browser.

Intermediate

AI Token Cost Calculator

Estimate LLM API cost from requests, input tokens, cached input, output tokens, batch discounts, and editable per-million-token model rates.

Beginner

Audio Noise Classifier

Select a short audio clip to route common noise categories for podcast QA, device testing, and support diagnostics.

Intermediate

AWS Bedrock Pricing Calculator

Calculate AWS Bedrock costs for Claude, Llama, Titan, and other AI models. Estimate input/output token costs for your workload

Beginner

Batch AI Processor — Run a Prompt Over Every CSV Row Locally

Run one AI prompt across every row of a CSV or spreadsheet entirely in your browser with a local LLM. Classify, extract, summarize, or reformat thousands of rows with zero API costs and zero data sharing.

Intermediate

Can I Run AI Locally? Hardware Checker

Find out in 10 seconds whether your computer can run local AI models. One click detects your GPU in the browser and shows which open LLMs you can run, expected speeds, and the cheapest upgrade for models just out of reach. 100% private — nothing is uploaded.

Intermediate

Deep Learning Visualizer — Watch a Neural Network Train, Live

Watch a real neural network learn, step by animated step: see data flow forward through the layers, watch backpropagation send the error backward, and see every weight adjust itself. Train on XOR, circles, moons, or spiral data with a live decision boundary — in slow motion or fast mode, 100% in your browser.

Intermediate

Embedding Similarity Playground

Type sentences and compute real text embeddings in your browser to see how AI measures meaning. Visualizes cosine similarity as a heatmap, a 2D PCA map, and most/least-similar pairs — fully private, nothing is uploaded.

Intermediate

Fine-Tuning Dataset Builder

Build, validate, and convert LLM fine-tuning datasets entirely in your browser. Add training examples by hand, validate JSONL with line-by-line errors and cost estimates, and convert between OpenAI chat, Alpaca, and ShareGPT formats. Nothing is uploaded — all processing runs locally.

Beginner

Fine-Tuning VRAM Calculator

Calculate VRAM requirements for fine-tuning LLMs with full fine-tuning, LoRA, or QLoRA. Accounts for gradients, optimizer states, activations, batch size, and gradient checkpointing — see which GPUs can train each model.

Advanced

GGUF Model Inspector

Inspect any GGUF model's architecture, quantization, context length and head/layer geometry straight from a HuggingFace link or local file — without downloading the whole multi-gigabyte file. 100% in-browser; nothing is uploaded.

Intermediate

Image Alt Text Generator

Drop an image to prepare concise alt-text notes, accessibility checks, and model cache behavior without uploading the file.

Intermediate

Image Upscale Sharpen Preview

Check whether an image is a good candidate for local upscaling, sharpening, or restoration before running heavier inference.

Intermediate

KV Cache & Context Length VRAM Calculator

Calculate how much VRAM an LLM's KV cache consumes at any context length. See the model-weights + KV-cache + overhead breakdown, a total-VRAM-vs-context curve against common GPU capacities, and the max context that fits per GPU. All math runs in your browser — nothing is uploaded.

Intermediate

LLM GPU Benchmark

Speed test your GPU for AI — measure real memory bandwidth and compute with WebGPU, run an actual LLM in your browser to measure true tokens/sec, and see predicted speeds for every popular model on your hardware.

Intermediate

LLM Inference Speed Calculator

Estimate LLM tokens per second from memory bandwidth, model size, quantization, and context window. Compare generation speed across GPUs (RTX 4090, 5090, A100, H100, Apple Silicon) and understand the memory-bandwidth bottleneck.

Beginner

LLM Quantization Explorer: Compare GGUF Quant Levels

Pick any open-weight LLM and compare every GGUF quantization level (FP16 to Q2_K) side by side: file size, VRAM required to run, quality impact, and which GPUs can run it. Includes a "what should I pick?" helper and an explainer. Runs entirely in your browser.

Intermediate

LLM Sampling Parameters Playground: Temperature, Top-k & Top-p

Interactively see how temperature, top-k, and top-p reshape an LLM's next-token probabilities. A no-download simulator runs the real decoding math on example distributions, and an optional in-browser model inspects a real model's logprobs — 100% private, nothing leaves your browser.

Intermediate

LLM Structured Output Builder

Visually build a JSON Schema and instantly generate OpenAI structured outputs, OpenAI/Anthropic tool definitions, Zod, and Pydantic code — plus validate sample responses and import existing schemas. 100% in-browser; nothing you type is uploaded.

Intermediate

LLM Token Counter

Count tokens in text for GPT, Claude, Gemini, and open models like Llama, Gemma, and Qwen — or search any model on Hugging Face. Estimate API costs, check context window fit, and optimize prompts

Advanced

LLM Token Usage Calculator

Calculate token usage and associated costs for LLM prompts.

Intermediate

LLM VRAM Calculator

Calculate how much VRAM any LLM needs to run locally — pick a model (Llama, Gemma, Qwen, DeepSeek, or search Hugging Face), choose a quantization and context size, and see which GPUs it fits on, including multi-GPU setups.

Intermediate

Local AI Chat

Chat with an AI model that runs entirely in your browser — free, no signup, no API key. Pick a model like Llama 3.2 or Qwen 2.5, load your own GGUF file, and conversations never leave your device.

Intermediate

Local RAG Playground — Chat With Your Documents In-Browser

A working Retrieval-Augmented Generation pipeline that runs 100% in your browser: add documents, chunk them, embed with all-MiniLM-L6-v2, and ask questions with cosine top-5 retrieval plus an optional in-browser LLM answer. Your documents never leave the browser — nothing is uploaded.

Intermediate

MCP Server Config Builder

Build and validate Model Context Protocol (MCP) server configs for Claude Desktop, Claude Code, Cursor, and VS Code. Pick from 16 popular servers, fill in credentials, and copy valid config JSON plus setup commands. Runs entirely in your browser — tokens never leave your machine.

Intermediate

Model Card Summary Builder

Model Card Summary Builder helps review AI operations inputs locally with private local analysis, browser-side previews, and optional cached model upgrades.

Intermediate

Model Output Safety Reviewer

Model Output Safety Reviewer helps review AI operations inputs locally with private local analysis, browser-side previews, and optional cached model upgrades.

Intermediate

Neural Network Playground

Train a real neural network in your browser — no code, no installs. Pick a sample dataset (Titanic survival, vehicle classifier, handwritten digits) or upload your own CSV, watch the network learn with live visuals, then ask it questions and export the model as Python/Keras code.

Intermediate

Ollama Command Builder

Build Ollama commands without memorizing syntax: run, pull, and create commands for any model, complete Modelfiles with parameters and system prompts, and server environment configuration — with built-in VRAM checks.

Intermediate

OpenAI API Compatibility Matrix: llama.cpp vs Ollama vs vLLM

Compare OpenAI API compatibility across llama.cpp server, Ollama, vLLM, and the Wide Area AI gateway: chat, embeddings, streaming, function calling, JSON mode, vision, logprobs, auth, and more — with honest caveats for every partial cell.

Intermediate

Phishing Email Analyzer

Paste a suspicious email and get an instant phishing risk score — checks for spoofed senders, deceptive links, lookalike domains, urgency tactics, and dangerous attachments. 100% private: nothing is uploaded, with an optional in-browser AI explanation.

Intermediate

PII Redactor

Detect and redact personal and sensitive data — emails, SSNs, credit cards, phone numbers, IPs, API keys — from any text or logs before you share them. Runs 100% in your browser; nothing is uploaded.

Intermediate

Private AI Essay Feedback

Get instant writing stats and private AI feedback on your essay against a rubric — entirely in your browser, with no uploads, no accounts, and no plagiarism-database risk.

Intermediate

Private AI Summarizer

Summarize any text with AI that runs entirely in your browser — paste an article, contract, or report and get bullet points or a TL;DR. Unlike cloud summarizers, your text is never uploaded.

Intermediate

Private AI Translator (In-Browser, Offline)

Translate text between 13 languages with Helsinki-NLP opus-mt models that run entirely in your browser. Nothing is uploaded, and it keeps working offline once a language model has downloaded.

Intermediate

Private Audio Transcriber (Whisper) — In-Browser, No Upload

Transcribe audio to text entirely in your browser with OpenAI's Whisper. Drop a file or record from your mic, pick Tiny or Base, then export TXT, SRT, or VTT — your audio never leaves your device.

Intermediate

Private OCR — Image to Text Converter

Extract text from images and screenshots entirely in your browser. Paste a screenshot or drop image files, pick from 11 languages, and get editable text with per-word confidence highlighting — 100% private, nothing is ever uploaded.

Intermediate

Private Text-to-Speech (In-Browser TTS)

Turn text into natural-sounding speech entirely in your browser. Use instant built-in browser voices, or a high-quality downloadable AI neural voice (Kokoro-82M) — nothing you type ever leaves your device.

Intermediate

Prompt Injection Risk Checker

Prompt Injection Risk Checker helps review AI operations inputs locally with private local analysis, browser-side previews, and optional cached model upgrades.

Intermediate

Prompt Library Deduplicator

Prompt Library Deduplicator helps review AI operations inputs locally with private local analysis, browser-side previews, and optional cached model upgrades.

Intermediate

RAG Answer Grounding Checker

RAG Answer Grounding Checker helps review AI operations inputs locally with private local analysis, browser-side previews, and optional cached model upgrades.

Intermediate

Self-Hosted LLM Cost Calculator

Is it cheaper to self-host an LLM or use an API? Compare GPT, Claude, and Gemini API costs against running open models on your own hardware or cloud GPUs — with break-even timelines and capacity checks.

Intermediate

Sentiment Tone Classifier

Paste support replies, reviews, social posts, or product feedback to preview tone locally before relying on a production model.

Intermediate

Synthetic Data Quality Labeler

Synthetic Data Quality Labeler helps review AI operations inputs locally with private local analysis, browser-side previews, and optional cached model upgrades.

Intermediate

Tokenizer Visualizer — See How LLMs Split Text Into Tokens

Paste any text and watch GPT-4 (cl100k_base) or GPT-4o/o1 (o200k_base) split it into colored token chips, with live token/char/word stats, per-model API cost, and a side-by-side tokenizer comparison. Runs entirely in your browser using the real gpt-tokenizer library — nothing is uploaded.

Intermediate

Training Data PII Preview

Training Data PII Preview helps review AI operations inputs locally with private local analysis, browser-side previews, and optional cached model upgrades.

Intermediate

Voice Command Intent Classifier

Voice Command Intent Classifier helps review AI operations inputs locally with private local analysis, browser-side previews, and optional cached model upgrades.

Intermediate

What LLM Can I Run?

Detect your GPU with one click and see which LLMs your computer can actually run — Llama, Gemma, Qwen, DeepSeek and 50+ more, ranked by whether they fit in your VRAM, need CPU offloading, or won't run at all.

Intermediate