Free AI Tools

Free AI tools you can use instantly — starting with a text-to-speech voice generator that turns any text into natural spoken audio. No account, no credit card, and no per-character paywall: paste your text, pick a voice, and download the result.

AI tools are the fastest-growing part of the library. Each one is designed to do a single job well and stay genuinely free for everyday use, with sensible rate limits instead of a sign-up wall. More AI utilities are added as the models that power them become affordable to run.

26 free tools·No signup·Free forever

AI Voice Generator

Turn text into realistic AI speech and download the MP3 — free, no signup. 5 natural voices, 29 languages, and emotion effects like whisper, laugh, and pauses. Great for videos, narration, e-learning, and accessibility.

AI Token Counter

Count tokens for any text against GPT-5, GPT-4o, Claude 4.x, Gemini 3, and Llama 4. See how much of each model's context window you'll use before sending. Runs entirely in your browser, no signup, sources cited.

Sentiment Analyzer

Detect positive, negative, or neutral sentiment in any English text. DistilBERT-SST-2 runs server-side, AFINN-111 lexicon cross-check runs alongside. No signup, no model download, per-sentence breakdown, sources cited.

Text Summarizer

Summarize long articles, papers, or meeting notes into a TL;DR paragraph plus key bullet points using a DistilBART model that runs entirely in your browser. No API key, no upload, sources cited.

Language Detector

Detect the language of any text snippet — Sinhala, Tamil, Hindi, English, Chinese, and 100+ more. Unicode-script analysis plus a server-side tri-gram classifier. No API keys, no signup, sources cited.

Prompt Formatter

Paste rough notes and get a well-structured AI prompt with role, task, constraints, and output format. Works with GPT, Claude, Gemini. Deterministic templating — runs entirely in your browser.

AI Keyword Extractor

Extract the most important keywords and key phrases from any text. Runs YAKE (statistical) and RAKE (co-occurrence) side by side, entirely in your browser. No API key, no signup, sources cited.

AI Entity Recognizer

Extract people, organisations, locations, and proper nouns from any English text. BERT NER runs server-side via Hugging Face — no signup, no model download, CSV and JSON export, sources cited.

AI Alt-Text Generator

Drop an image and get a concise, WCAG-friendly alt-text string plus two longer caption variants. BLIP captioning runs server-side via the Hugging Face Inference API, with a built-in WebAIM linter and W3C role-aware guidance.

AI Similarity Checker

Compare two texts and get a 0–100% semantic similarity score from sentence-transformer embeddings — catches paraphrases that word-overlap checkers miss. Server-side inference, lexical Jaccard cross-check, no signup, sources cited.

AI Question Answering

Paste any English passage and ask a question — the tool returns the exact span that answers it, with a confidence score. DistilBERT-SQuAD inference runs server-side; a keyword baseline runs alongside as a cross-check. No signup, no API key.

AI Grammar Checker

Paste any English paragraph and get a corrected version side-by-side with the original — each edit highlighted and labelled. LanguageTool engine server-side, deterministic rule baseline cross-check. No upload, no API key, no signup.

AI Image Cost Calculator

Compare monthly cost of generating AI images across DALL-E 3, Imagen 3, Flux Pro, Stable Diffusion 3.5, Ideogram, and Recraft V3. Per-image and monthly totals in USD and LKR, every price sourced.

AI Audio Transcriber

Upload an audio or video file and get a timestamped transcript in 99 languages — including Sinhala and Tamil — using OpenAI Whisper on the Hugging Face Inference API. Export plain text, SRT subtitles, or VTT captions. No signup, no API key, no audio stored.

Embedding Cost Calc

Estimate USD and LKR cost of generating vector embeddings across OpenAI, Cohere, Voyage AI, Google Gemini, and Mistral. One-time indexing, monthly queries, and first-year totals side-by-side with output dimensions — every price sourced.

AI Resume ATS Checker

Paste a resume and a job description to see an ATS score, missing keywords, format issues parsers struggle with, and section gaps. Scoring follows Workday, Greenhouse, and Lever guidance plus Jobscan's 2024 threshold. Runs in your browser, no signup.

AI Object Detector

Detect objects in any image with labelled bounding boxes — class names, confidence scores, and pixel coordinates. DETR and YOLOS transformers run server-side via the Hugging Face Inference API. COCO 80 classes, JSON + YOLO export, no signup.

AI Translator

Translate English ↔ Sinhala, English ↔ Tamil, and 50+ other language pairs in your browser. Powered by Meta's NLLB-200 (no-language-left-behind) model via transformers.js — no signup, no upload, no character limits, sources cited.

AI PII Redactor

Detect and redact PII — Sri Lanka NIC numbers, phones, emails, credit cards, IBANs, and IPs — from any pasted text. Regex + checksum validation, 100% client-side, no upload, no signup.

AI TTS Cost Calculator

Compare AI text-to-speech costs in USD and LKR across OpenAI TTS, ElevenLabs, Google Cloud TTS, Azure Neural, Amazon Polly, Deepgram Aura, Cartesia Sonic, and PlayHT. Enter characters or audio minutes per month and a quality tier; the cheapest supported provider is highlighted, free-tier allowances applied, and ElevenLabs auto-upgrades to the cheapest plan that covers your volume.

AI Zero-Shot Classifier

Classify any text into your own custom labels — no training data, no API key on your side, no signup. A distilled BART-MNLI NLI model runs server-side via Hugging Face using the entailment-NLI method. Single- and multi-label modes, sources cited.

AI Toxicity Detector

Score any English text for six kinds of toxicity — toxic, severe, obscene, threat, insult, identity hate — using unitary/toxic-bert via the Hugging Face Inference API server-side. Adjustable threshold, per-sentence breakdown, lexical heuristic cross-check, no signup.

AI Image Classifier

Drop an image and get the top ImageNet labels with softmax confidence scores. ViT-B/16 or ResNet-50 inference via the Hugging Face Inference API — no signup, sources cited, image bytes never stored.

AI Token Counter

Count tokens for any text across GPT-5, GPT-4o, Claude 4.x, Gemini 3, and Llama 4 — and see what fraction of each model's context window you'll use. Runs entirely in your browser, sources cited.

AI Prompt Library

48 structured, source-cited prompt templates for ChatGPT, Claude, Gemini, and Llama. Categories cover writing, coding, analysis, learning, marketing, and productivity. Filter, fill placeholders, copy in one click — no signup, no API call.

AI Model Compare

Compare the latest LLMs side by side — GPT-5, Claude 4.5, Gemini 2.5, Llama 4, DeepSeek, Grok, Mistral. Context windows, input and output pricing, vision, function calling, training cutoff. Project monthly cost for your workload. Sources cited.

Frequently asked questions

Is the AI voice generator really free?: Yes — it's free to use with no account and no credit card. There are fair-use rate limits to keep it available for everyone, but no paywall on the core feature.
Do the AI tools work on mobile?: Yes. They run in any modern browser on phone, tablet or desktop.

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