Yes, all 70+ tools on Tulz are completely free. No subscription, no hidden fees, and no sign-up required.

Do I need to create an account to use the tools?

No account is needed. All Tulz tools work instantly in your browser — just open the tool and start using it.

Is my data private when using Tulz?

Yes. Tulz tools run entirely in your browser. Your files and data are never uploaded to any server, ensuring complete privacy.

What tools does Tulz offer?

Tulz offers 70+ tools across 8 categories: Image tools (compress, crop, background remover, watermark, photo collage), PDF tools (merge, split, compress, PDF to Word), Developer tools (JSON formatter, regex tester, Base64, hash generator, diff checker, JWT decoder), Text tools (word counter, case converter, markdown editor, lorem ipsum), Finance calculators (SIP, compound interest, GST, salary, tip calculator), Games (Wordle, 2048, Hangman, Sudoku, Connections), Productivity tools (Pomodoro timer, QR code generator, unit converter, timezone converter), and Utility tools (password generator, color palette, favicon generator, URL shortener).

Can I use Tulz on mobile?

Yes, Tulz is fully responsive and works on all devices including smartphones, tablets, and desktop computers.

OpenAPI / Swagger Viewer

Paste or load a YAML/JSON spec to interactively browse endpoints, parameters, and schemas

OpenAPI 3.x / Swagger 2.0 — YAML or JSON

openapi: "3.0.3"
info:
  title: Petstore API
  version: "1.0.0"
  description: |
    A sample API that uses a petstore as an example.
    Supports full CRUD for pets and their owners.
  contact:
    name: API Support
    email: support@petstore.example
  license:
    name: MIT
servers:
  - url: https://api.petstore.example/v1
    description: Production
  - url: https://sandbox.petstore.example/v1
    description: Sandbox
tags:
  - name: Pets
    description: Everything about your pets
  - name: Owners
    description: Owner management
paths:
  /pets:
    get:
      tags: [Pets]
      summary: List all pets
      operationId: listPets
      parameters:
        - name: limit
          in: query
          description: Maximum number of items to return
          required: false
          schema:
            type: integer
            default: 20
            maximum: 100
        - name: species
          in: query
          description: Filter by species
          schema:
            type: string
            enum: [dog, cat, bird, rabbit]
      responses:
        "200":
          description: A list of pets
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: "#/components/schemas/Pet"
        "400":
          description: Invalid query parameters
        "500":
          description: Internal server error
    post:
      tags: [Pets]
      summary: Create a new pet
      operationId: createPet
      requestBody:
        required: true
        description: Pet details to create
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/NewPet"
      responses:
        "201":
          description: Pet created successfully
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Pet"
        "422":
          description: Validation error
  /pets/{petId}:
    get:
      tags: [Pets]
      summary: Get a pet by ID
      operationId: getPetById
      parameters:
        - name: petId
          in: path
          required: true
          description: The unique pet identifier
          schema:
            type: integer
      responses:
        "200":
          description: Pet found
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Pet"
        "404":
          description: Pet not found
    put:
      tags: [Pets]
      summary: Update a pet
      operationId: updatePet
      parameters:
        - name: petId
          in: path
          required: true
          schema:
            type: integer
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/NewPet"
      responses:
        "200":
          description: Pet updated
        "404":
          description: Pet not found
    delete:
      tags: [Pets]
      summary: Delete a pet
      operationId: deletePet
      deprecated: true
      parameters:
        - name: petId
          in: path
          required: true
          schema:
            type: integer
      responses:
        "204":
          description: Pet deleted
        "404":
          description: Pet not found
  /owners:
    get:
      tags: [Owners]
      summary: List all owners
      parameters:
        - name: search
          in: query
          schema:
            type: string
      responses:
        "200":
          description: A list of owners
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: "#/components/schemas/Owner"
components:
  schemas:
    Pet:
      type: object
      required: [id, name, species]
      properties:
        id:
          type: integer
          readOnly: true
        name:
          type: string
        species:
          type: string
          enum: [dog, cat, bird, rabbit]
        age:
          type: integer
          minimum: 0
        ownerId:
          type: integer
    NewPet:
      type: object
      required: [name, species]
      properties:
        name:
          type: string
        species:
          type: string
        age:
          type: integer
    Owner:
      type: object
      properties:
        id:
          type: integer
        name:
          type: string
        email:
          type: string
          format: email

Supports OpenAPI 3.x and Swagger 2.0 — YAML and JSON formats. Everything runs in your browser.