Free tools

Tools we use in our daily work, now available to everyone. No sign-up, everything runs in your browser.

Website cost calculator

An estimated price and timeline for a website, store or web app

AI automation ROI calculator

Hours and money saved by automation and when it pays off

LLM API cost calculator

Monthly token cost for GPT, Claude, Gemini and DeepSeek

Can my computer run a local AI model?

Check VRAM and RAM for Llama, Qwen, Mistral and other models

RAG calculator: chunks and embeddings

Chunk count, embedding cost and vector database size

Meta tag generator and Google preview

Title, description and Open Graph tags with a SERP preview

robots.txt generator

Create robots.txt and block AI bots in one click

llms.txt generator

A file that helps ChatGPT and AI search engines understand your site

FAQ schema generator

JSON-LD for FAQs, ready for Google

Strong password generator

Random, secure passwords generated in your browser

Password strength checker

How long it would take to crack your password

QR code generator

QR codes for links, WiFi, email or phone, PNG and SVG

Serbian Cyrillic to Latin converter

Transliterate Serbian text in both directions

JSON formatter and validator

Format, minify and validate JSON

Base64 encoder and decoder

Encode and decode text and files

UTM link builder

Campaign tracking links for Google Analytics

Image compressor and WebP converter

Shrink images and convert them to WebP or AVIF

Word and character counter

Words, characters, sentences and reading time

URL slug generator

Clean URLs from titles, including Cyrillic

VAT calculator

Add or remove VAT at 20%, 19%, 10% and other rates

CV generator

Create a PDF CV in 5 minutes, 5 professional templates

Proforma and quote generator

Proforma, quote or invoice as PDF, with VAT and logo

Email signature generator

Professional signature for Gmail and Outlook, 3 templates

JPG to PDF

Combine images (JPG, PNG, WebP) into one PDF

Merge PDF files

Combine multiple PDFs into one, without sending to a server

Frequently asked questions

Are the tools really free?

Yes, all tools are free and require no sign-up.

Is my data sent to a server?

No. The tools run in your browser, so texts, images and passwords never leave your device.

Can I suggest a new tool?

Of course. Send us your idea through the contact form and if it is useful to many people, we will build it.

Tell us what slows you down

We reply within one business day. The first call and the estimate are free.

office@evi.rs +381 62 28 22 082