Free and open first

Best PDF mergers in 2026

PDF merger tools combine PDF files into a single document. This guide is for people who need a practical way to join files and want to compare free access, trials, platforms, and licences.

23 apps
How the order is worked out

1

PDF Candy
by PDF Candy
Free plan AndroidiPhoneLinux+3

PDF Candy combines a broad set of PDF tools with AI features and cloud storage connections.

7.7 Free plan · paid from $6/mo Visit site
2

HiPDF
by HiPDF
Free plan AndroidAPIExtension+5

HiPDF combines conversion with PDF editing, OCR, batch processing, and AI tools. Check file-size limits and renewal terms when choosing an access option.

7.6 Free plan · paid from $39.95/yr · 7-day trial Visit site
3

PDF24 Compare PDF

Free plan AndroidiPhoneLinux+3

PDF24 Compare PDF provides several ways to review text changes without installing software.

7.6 Free plan Visit site
4

PDF4me Merge & Split

Free plan AndroidAPIExtension+2

PDF4me offers several ways to merge and split PDFs, from browser tools to API and no-code workflows. Check the call limits and per-page billing for some features when estimating API use.

7.6 Free plan · paid from $25 Visit site
5

CombinePDF

Free plan AndroidiPhoneLinux+3

CombinePDF handles mixed PDF and image inputs with ordering controls and no account requirement. Its upload count and per-file size limits are worth checking before combining larger batches.

7.5 Free plan Visit site
6

CoolUtils Online PDF Merger

Free plan AndroidAPIiPhone+5

CoolUtils Online PDF Merger covers straightforward, small merges, including adding common image formats as PDF pages.

7.4 Free plan Visit site
7

LightPDF
by LightPDF
Free plan AndroidAPIExtension+6

LightPDF combines common PDF workflows with chat-based tasks and additional AI functions.

7.4 Free plan · paid from $5.99/mo · 3-day trial Visit site
8

DoKit

Free plan Web

Choose DoKit for browser-based PDF tasks, especially when you need to merge mixed file formats or extract pages without installing an app.

7.2 Free plan Visit site
9

PDFMerged

Free plan AndroidiPhoneLinux+3

PDFMerged offers browser-based merging with image support and no stated file-count cap beyond device memory.

7.2 Free plan Visit site
10

Secure-Merge

Free plan Web

Secure-Merge combines browser-based merging with a receipt describing document processing and network activity.

7.1 Free plan Visit site
11

Sejda PDF Editor
by Sejda PDF Editor
Free plan LinuxMacWeb+1

7.1 Free plan Visit site
12

PDFgear
by PDFgear
Free plan AndroidExtensioniPhone+3

PDFgear brings several PDF utilities, including OCR, into a free product available across mobile, desktop, and web. The stated 100 MB cap applies to PDFs in its online editor.

7.1 Free plan Visit site
13

AvePDF

Free plan AndroidiPhoneLinux+1

AvePDF covers common PDF tasks and conversion across a wide range of formats, with cloud upload and save options.

7.0 Free plan Visit site
14

Smallpdf
by Smallpdf
Free plan AndroidiPhoneWeb+1

Smallpdf brings a broad set of PDF tasks together, including OCR, annotations, document signing and file sharing across devices.

7.0 Free plan · paid from $7/user/mo (annual) · 7-day trial Visit site
15

Mergram PDF Merger & Splitter

Free plan Web

Choose Mergram PDF Merger & Splitter for browser-based PDF merging or page extraction with no sign-up, watermark, or daily processing cap.

6.9 Free plan Visit site
16

Online PDF Merger

Free plan Web

Choose Online PDF Merger for a free browser workflow that combines and orders up to 20 PDF files at a time.

6.9 Free plan Visit site
17

Online2PDF

Free plan Web

Online2PDF brings a broad set of PDF tasks into a web service, with batch support and a free plan. Its lack of API, local software, and automated bulk processing limits it for repeatable workflows.

6.9 Free plan Visit site
18

iLovePDF
by iLovePDF
Free plan AndroidiPhoneMac+2

iLovePDF covers common PDF tasks alongside form creation, AI tools, and an offline desktop app.

6.9 Free plan Visit site
19

ZonePDF

Free plan AndroidExtensioniPhone+3

ZonePDF combines browser PDF tools, an AI assistant, and a local-processing desktop app.

6.9 Free plan · paid from $2.99/mo (annual) Visit site
20

PDF Joiner

Free plan Web

PDF Joiner covers straightforward PDF and image merging in a web browser, with file reordering and batches of up to 20 PDFs.

6.8 Free plan Visit site
21

PDFinery

Free plan Web

PDFinery offers a broad set of PDF tasks in the browser, with the site describing local processing and no file-size restrictions. Its free plan is listed as free, with no account required.

6.8 Free plan Visit site
22

PDFViz

Free plan Web

PDFViz provides a broad collection of browser-based PDF operations with local processing and output checks.

6.7 Free plan Visit site
23

Falcon Merge

Free plan Web

Choose Falcon Merge for straightforward browser-based PDF combining, especially when keeping file contents on-device is important.

6.5 Free plan · paid from ₹49/mo Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

Before choosing, check whether the tool has a free plan or trial, what its paid pricing model is, and whether it runs on your device. If you need to read or change the code, check the licence.

Questions

Do PDF mergers offer free plans?

Yes. Items on this list offer free plans, including free and freemium tools.

Are PDF merger tools free?

Pricing models include free and freemium options. PDF4me Merge & Split lists paid access from $25.

Can I try a PDF merger before paying?

A free trial is offered by items on this list. Check the trial terms before use.

Which platforms are supported?

Listed tools run on web, Android, iOS, Windows, macOS, or Linux.

What should I check if I need the source code?

Read the tool's licence to confirm whether you can inspect, modify, or share its code.

Questions

More in Documents & Writing