I am absoloutly in love with this song. Its such a meaningful and relatable song. 
So I decided "Why not make a tab for it?" So I did :) If possible, put a capo on 
the 6th fret and start singing on B. Good Luck I made it as easy as possible :D

C              Em
You're not alone
                Am              
Together we stand
                   F                               C
I'll be by your side, you know I'll take your hand
                 Em
When it gets cold
                        Am
And it feels like the end
                       F
There's no place to go
                       C  Em
You know I won't give in
                Am  F
No I won't give in

C      Em    Am
Keep holding on
                      F
'Cause you know we'll make it through, we'll make it through
C     Em   Am
Just stay strong
                    F                                  C
'Cause you know I'm here for you, I'm here for you
                             Em
There's nothing you could say
                    Am
Nothing you could do
                              F
There's no other way when it comes to the truth
    C    Em     Am
So keep holding on
                      F
'Cause you know we'll make it through, we'll make it through

C          Em
So far away
                   Am
I wish you were here
                   F                           C
Before it's too late, this could all disappear
                  Em
Before the doors close
                    Am
And it comes to an end
                 F                         C  Em
With you by my side I will fight and defend
                     Am 
I'll fight and defend
F
Yeah, yeah
C    Em      Am
Keep holding on
                      F
'Cause you know we'll make it through, we'll make it through
C      Em   Am
Just stay strong
                    F                               C
'Cause you know I'm here for you, I'm here for you
                            Em
There's nothing you could say
                   Am
Nothing you could do
                              F
There's no other way when it comes to the truth
    C      Em    Am
So keep holding on
                       F
'Cause you know we'll make it through, we'll make it through
 Dm                            F  Bm  Am   
Hear me when I say, when I say I believe
   Dm                                          F  Bm  Am
Nothing's gonna change, nothing's gonna change destiny
                                       F  Bm11
Whatever's meant to be will work out perfectly
             F    Bm11    C
Yeah, yeah, yeah, yeah
          Em
La da da da
          Am
La da da da
            F             
La da da da da da da da da
C     Em      Am
Keep holding on
                       F
'Cause you know we'll make it through, we'll make it through
C    Em    F
Just stay strong
                    F                             C
'Cause you know I'm here for you, I'm here for you
                           Em
There's nothing you could say
                   Am
Nothing you could do
                              F
There's no other way when it comes to the truth
    C    Em     Am
So keep holding on
                      F                                    C  Em  Am
'Cause you know we'll make it through, we'll make it through
F            C  Em  Am
Keep holding on
F             C
Keep holding on
                             Em
There's nothing you could say
                   Am
Nothing you could do 
                              F
There's no other way when it comes to the truth
    C    Em     Am
So keep holding on
                      F                                       C  
'Cause you know we'll make it through, we'll make it through