Need it, stuck, want to solve it fast?UtilizAí.
3,986+

Everything you need in one place, no more juggling a thousand tabs.

144 interactive tools + 3,842 scientific calculators, converters, generators, validators, and everyday utilities. Fast, with no hidden paywall.

3,986+
tools and calculators
144
interactive tools
3,842
scientific calculators
0
mandatory signup

7 verticais, 1 plataforma

Tudo que voce precisa em um so lugar — sem cadastro, sem ruido

Calculadoras, conversores, ferramentas, midia com IA, educacao oficial, saude e cripto. Cada vertical com sua identidade, suas ferramentas, sua especialidade. Tudo aberto, atribuicao rigorosa.

Calculadoras

50+ calculadoras

Calcule qualquer coisa, do IMC ao TRI do ENEM

Mais de 50 calculadoras gratuitas: financeiras (juros, financiamento, INSS, IR), saude (IMC, gestacional), academicas (TRI ENEM, cutoff), cientificas (algebra, calculo) e cotidiano. Sem cadastro, instantaneo.

Abrir calculadoras

Conversores

USD/BRL em tempo real

Converta moedas, unidades e formatos em tempo real

Cambio em tempo real do dolar, euro, libra. Conversao bidirecional de peso, distancia, volume, temperatura, pressao, area, energia. Fuso horario, datas e bases numericas (binario, hex, octal).

Ver conversores

Ferramentas

CEP, CNPJ, mais 25 ferramentas

Consultas e utilitarios do dia a dia

CEP, CNPJ, sancao CGU, clima, QR code, gerador de senha, hash, UUID, regex tester, JSON formatter, Base64, comparador de texto, contador de palavras, conversor de cor.

Explorar ferramentas

Midia

95k+ imagens IA

Imagens, PDFs, videos e audios. Tudo com IA.

Galeria de 95 mil imagens geradas por IA. Conversor universal PDF/Word/Excel. Whisper para transcrever audio. Legendagem automatica de video. Remover fundo, comprimir, OCR.

Acessar midia

Educacao

40k+ questoes + 6 IAs

pt-BR

ENEM, OAB, ITA, CACD, concursos com IA gratuita

Banco de questoes oficiais (INEP, FGV, IADES, OAB, Cebraspe) e seis IAs especializadas - uma por exame. Conteudo aberto, monetizacao apenas nas IAs. Atribuicao rigorosa as fontes oficiais.

Comecar a estudar

Saude

Bulario ANVISA + 870+ exercicios

pt-BR

Bulario, exercicios e fonoaudiologia clinica

Bulario online direto da ANVISA. Catalogo de 870+ exercicios fisicos por grupo muscular. Fonoaudiologia clinica revisada por fonoaudiologa. Calculadoras medicas (IMC, dose pediatrica, gestacional).

Consultar saude

Cripto

Top 100 em tempo real

Cotacao em tempo real e IR cripto 2026

Cotacao Bitcoin, Ethereum e top 100 moedas em tempo real. Calculadora de IR sobre cripto compativel com a RFB IN 1888. Lucro/prejuizo, halving e glossario DeFi. Sem promessa de retorno.

Acessar cripto

Conteudo aberto. Calculadoras, conversores, ferramentas, midia, questoes educacionais, bulas e cotacoes sao 100% gratuitos. Monetizacao exclusiva nas IAs especializadas (uma por exame, planos a partir de R$ 19,90/mes para OBMEP, R$ 39,90 para ENEM e Concursos).

Organized by what you're trying to do.

13 categories. Direct navigation, no endless nested menus.

See all →
%
Financial
Interest, installments, income tax, payroll, FX.
34 tools→
⇌
Converters
Currency, units, time, bases.
28 tools→
#
Generators
IDs, UUIDs, passwords, lorem ipsum.
22 tools→
{}
Developers
JSON, regex, base64, diff, JWT.
41 tools→
Aa
Text
Count, clean, case, markdown.
19 tools→
⏱
Date & Time
Difference, timezone, cron, stopwatch.
14 tools→
⊙
Image
Optimize, edit, convert, protect.
14 tools→
PDF
PDF & Docs
Merge, split, convert, protect, compare.
34 tools→
▶
Video & Audio
Compress, convert, extract audio.
3 tools→
⚖
Brazil Official
ZIP, NCM, SELIC, Receita Federal.
9 tools→
★
Daily Life
Health, geo, everyday wellness.
12 tools→
Speech Therapy
Voice, language, swallowing, clinical.
16 tools→
Scientific Calculators
Physics, Chemistry, Math, Biology, Engineering and more, 14 areas.
3842 tools→

Featured tools.

Editorial pick of the most useful everyday tools.

See all →
#01 · /ferramentas/calculadora-juros-compostos
Compound interest
Simulate investments with monthly contributions, inflation, and reinvestment.
#02 · /ferramentas/gerador-cnpj
Valid CNPJ generator
For form and integration testing. With or without mask.
#03 · /ferramentas/consulta-cnpj
CNPJ lookup
Company data, partners, and CNAE via Receita Federal.
#04 · /ferramentas/juntar-pdf
Merge PDFs
No size limit, no watermark, local processing.
#05 · /ferramentas/conversor-moedas
Currency converter
Official Central Bank rates in 170+ currencies.
#06 · /ferramentas/contador-palavras
Word counter
Characters, words, paragraphs, and estimated reading time.

Not sure which tool to use?
Describe the problem.

UtilizAí's AI understands natural language, suggests the right tool, and can even run the whole action without you leaving the chat.

01Understands casual English, "how much does 5k yield at 12% per year?"
02Combines multiple tools into a single workflow.
03Cites official sources in every response.
Try it now →
UUtilizAí Assistant
illustrative example
I need to convert 2500 dollars to reais at today's rate and calculate the FX tax
Using a hypothetical rate of 1 USD = R$ 5.47, US$ 2,500 = R$ 13,675.00.
. With FX tax of 1.10% (currency purchase), the tax would be R$ 150.43. Total: R$ 13,825.43.↗ in the real app, official sources: bcb.gov.br · rfb.gov.br
What if I split it into 3 installments?

One site. Four profiles served.

◧
Independent professional
Fee calculation, receipt issuing, document conversion.
⌘
Developers & IT
JSON, regex, JWT, encoding, REST APIs.
$
Entrepreneur
Pricing, margins, tax simulation, financing.
⌂
Personal use
Split bill, tip, BMI, travel time calculations.

One account, 3,986+ tools and calculators.
Zero friction.

Free forever on the base plan. No credit card required.

Create free accountExplore without signing up