AI & ML Tools

Free AI and machine-learning tools that run in your browser: build and improve prompts, count tokens, estimate LLM API costs and GPU VRAM, prepare JSONL fine-tuning datasets, chunk text for RAG, and calculate training steps, learning-rate schedules and model metrics. No API key, no signup.

AI & ML Tools

18 tools in this category

Prompt Generator

Build clear, structured prompts for ChatGPT, Claude, Gemini and other LLMs by filling in …

Prompt Improver

Score any AI prompt against a prompt-engineering checklist (role, context, format, exampl…

System Prompt Builder

Create a reusable system prompt for a custom GPT, Claude project, chatbot or AI agent: pe…

Few-Shot Builder

Turn example input/output pairs into a clean few-shot prompt for classification, extracti…

Token Counter

Estimate how many tokens your text uses in GPT, Claude, Gemini or Llama models, plus word…

LLM Cost Calculator

Estimate monthly AI API costs from input/output tokens, requests per day and price per mi…

Context Window

Check whether a prompt or document fits a model’s context window, how much room is left f…

Text Chunker

Split long text into chunks by characters, words or estimated tokens with overlap, ready …

JSONL Dataset Builder

Convert CSV or prompt/response pairs into chat-format JSONL for fine-tuning OpenAI, Mistr…

JSONL Validator

Validate JSONL files line by line: find JSON syntax errors, missing messages/roles, empty…

Dataset Splitter

Shuffle lines of CSV or JSONL data with a fixed seed and split them into train, validatio…

Training Steps

Calculate steps per epoch, total training steps, warmup steps and effective batch size fr…

LR Scheduler

Plot learning rate schedules (constant, linear decay, cosine, cosine with restarts, step)…

GPU VRAM Calculator

Estimate GPU memory needed to run or fine-tune an LLM by parameter count, precision (FP16…

Confusion Matrix

Enter true/false positives and negatives to compute accuracy, precision, recall, specific…

Cosine Similarity

Compute cosine similarity, dot product and Euclidean distance between two vectors or embe…

Image Prompt Builder

Build detailed image prompts by picking subject, style, lighting, camera, composition, mo…

AI Cliché Finder

Highlight overused AI-sounding words and phrases (delve, tapestry, in today’s fast-paced …