Testing APIs with lots of form-data fields can be a real chore—especially when you're dealing with booleans, arrays, file uploads, and conditional validation. If you’re tired of adding each field manually in Postman, it’s time to embrace one of its most powerful (and underrated) features: Bulk Edit.

In this article, you'll learn how to use Bulk Edit in Postman to efficiently send form-data, handle tricky boolean values, submit arrays, and upload multiple files—regardless of the backend technology you're using.

The Problem: Manual Form-Data Entry Is Painful

When testing an API endpoint that accepts multipart/form-data, the standard way in Postman involves adding each key-value pair one-by-one in the Body > form-data tab. This can get frustrating and error-prone, especially when:

• You have 10+ fields to fill.
• You're dealing with nested or array inputs.
• You're testing different input combinations quickly.
• You need to upload files.

The Solution: Postman's Bulk Edit for Form-Data

Postman's Bulk Edit mode lets you paste all your form-data at once in key:value format. It then converts everything back into the standard key-value table for easier editing, including arrays and file inputs.

Example Use Case

Say you're testing a task creation endpoint with these fields:

• title: String
• description: Optional String
• category_id: Optional Integer
• is_flagged: Boolean
• due_date: Date (e.g., 2025-05-21)
• due_time: Time (e.g., 15:30)
• reminder: Boolean
• reminder_type[]: Array of strings (e.g., email, push)
• reminder_offset: Enum
• custom_reminder_time: Integer (minutes)
• custom_reminder_unit: Enum (minutes, hours, days)
• repeat: Boolean
• repeat_frequency: Enum (daily, weekly, monthly, yearly)
• attachments[]: Array of files

How to Use Bulk Edit in Postman

Step 1: Switch to Bulk Edit Mode

1. Open Postman.
2. Go to the Body tab and select form-data.
3. Click Bulk Edit in the top right of the table.

Step 2: Paste the Form-Data

Paste this into the bulk edit editor:

title: Buy groceries
description: Buy milk, bread, and eggs
category_id: 3
is_flagged: 1
due_date: 2025-05-21
due_time: 15:30
reminder: 1
reminder_type[]: email
reminder_type[]: push
reminder_offset: custom
custom_reminder_time: 10
custom_reminder_unit: minutes
repeat: 1
repeat_frequency: weekly
attachments[]: (select file manually)
attachments[]: (select second file manually)

Step 3: Switch Back to Key-Value View

Click Key-Value Edit to see your data in the normal table layout.

For file fields like attachments[], switch the Type from Text to File and upload files manually.

🔧 Tips for Avoiding Common Issues

1. ✅ Boolean Fields: Use 1 for true, 0 for false

Most backend frameworks interpret 1 and 0 correctly as booleans in form-data. Avoid using "true" or "false" strings unless explicitly supported.

2. Arrays: Use field[] multiple times

For example:

reminder_type[]: email  
reminder_type[]: sms

3. File Uploads: Must be selected manually

Postman doesn’t support file selection in bulk mode. You must switch to key-value view and choose files manually.

4. Matching Frontend & Backend Naming

Always make sure the field names in Postman match exactly what your backend expects—case sensitive and correctly formatted.

Backend-Agnostic Compatibility

This approach works seamlessly across:

• Node.js / Express (with multer or similar)
• Python / Django / Flask
• PHP / Laravel / Symfony
• Ruby on Rails
• Go / Fiber / Echo
• Java / Spring Boot
• Any backend that accepts multipart/form-data

Final Thoughts

Postman's Bulk Edit mode is a powerful tool for developers and testers working with form-data APIs. Whether you're dealing with booleans, arrays, enums, or file uploads, bulk editing saves you time, reduces input errors, and helps you iterate faster during testing.