diff --git a/README.md b/README.md
index 0a6acf83b6dd28f0c3c3c6ed108095aa2c6d07e0..c5c5bdee463f6f1e62143582527f878a90dce1cf 100644
--- a/README.md
+++ b/README.md
@@ -46,10 +46,10 @@ for guide_rna in guide_rnas:
 _output :_
 
 ```
-{'target': 'TCATCACGGGCCTTCGCCACGCGCG', 'guide': 'TCATCACGGGCCTTCGCCAC', 'start': 82, 'stop': 102, 'pam': 80, 'ori': '-', 'pred': -0.4719254873780802}
-{'target': 'CATCACGGGCCTTCGCCACGCGCGC', 'guide': 'CATCACGGGCCTTCGCCACG', 'start': 81, 'stop': 101, 'pam': 79, 'ori': '-', 'pred': 1.0491308060379676}
-{'target': 'CGCGCGCGGCAAACAATCACAAACA', 'guide': 'CGCGCGCGGCAAACAATCAC', 'start': 63, 'stop': 83, 'pam': 61, 'ori': '-', 'pred': -0.9021152826078697}
-{'target': 'CCTGATCGGTATTGAACAGCATCTG', 'guide': 'CCTGATCGGTATTGAACAGC', 'start': 29, 'stop': 49, 'pam': 27, 'ori': '-', 'pred': 0.23853258873311955}
+{'target': 'TCATCACGGGCCTTCGCCACGCGCG', 'guide': 'TCATCACGGGCCTTCGCCAC', 'start': 82, 'stop': 102, 'pam': 80, 'ori': '-', 'target_id': 1, 'pred': -0.4719254873780802, 'off_targets_per_seed': []}
+{'target': 'CATCACGGGCCTTCGCCACGCGCGC', 'guide': 'CATCACGGGCCTTCGCCACG', 'start': 81, 'stop': 101, 'pam': 79, 'ori': '-', 'target_id': 2, 'pred': 1.0491308060379676, 'off_targets_per_seed': []}
+{'target': 'CGCGCGCGGCAAACAATCACAAACA', 'guide': 'CGCGCGCGGCAAACAATCAC', 'start': 63, 'stop': 83, 'pam': 61, 'ori': '-', 'target_id': 3, 'pred': -0.9021152826078697, 'off_targets_per_seed': []}
+{'target': 'CCTGATCGGTATTGAACAGCATCTG', 'guide': 'CCTGATCGGTATTGAACAGC', 'start': 29, 'stop': 49, 'pam': 27, 'ori': '-', 'target_id': 4, 'pred': 0.23853258873311955, 'off_targets_per_seed': []}
 ```
 
 ### Command line interface
@@ -82,7 +82,7 @@ $ crisprbact predict from-str --help
 ```
 
 ```
-Usage: crisprbact predict from-str [OPTIONS] [OUTPUT_FILE]
+Usage: cli.py predict from-str [OPTIONS] [OUTPUT_FILE]
 
   Outputs candidate guide RNAs for the S. pyogenes dCas9 with predicted on-
   target activity from a target gene.
@@ -91,8 +91,15 @@ Usage: crisprbact predict from-str [OPTIONS] [OUTPUT_FILE]
   "stdout"
 
 Options:
-  -t, --target TEXT  [required]
-  --help             Show this message and exit.
+  -t, --target TEXT               Sequence file to target  [required]
+  -s, --off-target-sequence FILENAME
+                                  Sequence in which you want to find off-
+                                  targets
+  -w, --off-target-sequence-format [fasta|gb|genbank]
+                                  Sequence in which you want to find off-
+                                  targets format  [default: genbank]
+  --help                          Show this message and exit.
+
 ```
 
 ```console
@@ -124,7 +131,7 @@ $ crisprbact predict from-seq --help
 ```
 
 ```
-Usage: crisprbact predict from-seq [OPTIONS] [OUTPUT_FILE]
+Usage: cli.py predict from-seq [OPTIONS] [OUTPUT_FILE]
 
   Outputs candidate guide RNAs for the S. pyogenes dCas9 with predicted on-
   target activity from a target gene.
@@ -133,9 +140,16 @@ Usage: crisprbact predict from-seq [OPTIONS] [OUTPUT_FILE]
   "stdout"
 
 Options:
-  -t, --target FILENAME           Sequence file  [required]
-  -f, --seq-format [fasta|fa|gb|genbank]
-                                  Sequence file format  [default: fasta]
+  -t, --target FILENAME           Sequence file to target  [required]
+  -f, --seq-format [fasta|gb|genbank]
+                                  Sequence file to target format  [default:
+                                  fasta]
+  -s, --off-target-sequence FILENAME
+                                  Sequence in which you want to find off-
+                                  targets
+  -w, --off-target-sequence-format [fasta|gb|genbank]
+                                  Sequence in which you want to find off-
+                                  targets format  [default: genbank]
   --help                          Show this message and exit.
 ```
 
@@ -151,17 +165,22 @@ $ crisprbact predict from-seq -t /tmp/seq.fasta guide-rnas.tsv
 $ crisprbact predict from-seq -t /tmp/seq.gb -f gb guide-rnas.tsv
 ```
 
+- Off-targets
+
+```console
+predict from-seq -t data-test/sequence.fasta -s data-test/sequence.gb guide-rnas.tsv
+```
+
 ##### Output file
 
 ```
-target	PAM position	prediction	input_id
-ATTTGTTGGCAACCCAGCCAGCCTT	855	-0.7310112260341689	CP027060.1
-CACGTCCGGCAATATTTCCGCGAAC	830	0.14773859036983505	CP027060.1
-TCCGAGCGGCAACGTCTCTGATAAC	799	-0.4922487382950619	CP027060.1
-GCTTAAAGGGCAAAATGTCACGCCT	769	-1.814666749464254	CP027060.1
-CTTAAAGGGCAAAATGTCACGCCTT	768	-0.4285147731290152	CP027060.1
-CGTTTGAGGAGATCCACAAAATTAT	732	-1.2437430146548256	CP027060.1
-CATGAATGGTATAAACCGGCGTGCC	680	-0.8043242669169294	CP027060.1
+target_id	target	PAM position	prediction	target_seq_id	seed_size	off_target_recid	off_target_start	off_target_end	off_target_pampos	off_target_strand	off_target_feat_type	off_target_feat_start	off_target_feat_end	off_target_feat_strand	off_target_locus_tag	off_target_gene	off_target_note	off_target_product	off_target_protein_id
+1	TGATCCAGGCATTTTTTAGCTTCAT	835	0.47949500169043713	NC_017634.1:2547433-2548329	8	NC_017634.1	1388198	1388209	1388209	+
+1	TGATCCAGGCATTTTTTAGCTTCAT	835	0.47949500169043713	NC_017634.1:2547433-2548329	8	NC_017634.1	2244514	2244525	2244525	+	CDS	2243562	2244720	-1	NRG857_10810		COG1174 ABC-type proline/glycine betaine transport systems, permease component	putative transport system permease	YP_006120510.1
+1	TGATCCAGGCATTTTTTAGCTTCAT	835	0.47949500169043713	NC_017634.1:2547433-2548329	8	NC_017634.1	4160984	4160995	4160995	+	CDS	4160074	4161406	-1	NRG857_19625	hslU	COG1220 ATP-dependent protease HslVU (ClpYQ), ATPase subunit	ATP-dependent protease ATP-binding subunit HslU	YP_006122267.1
+1	TGATCCAGGCATTTTTTAGCTTCAT	835	0.47949500169043713	NC_017634.1:2547433-2548329	8	NC_017634.1	4534189	4534200	4534200	+
+1	TGATCCAGGCATTTTTTAGCTTCAT	835	0.47949500169043713	NC_017634.1:2547433-2548329	8	NC_017634.1	548804	548815	548804	-
+1	TGATCCAGGCATTTTTTAGCTTCAT	835	0.47949500169043713	NC_017634.1:2547433-2548329	8	NC_017634.1	786462	786473	786462	-	CDS	785384	786470	1	NRG857_03580		COG2055 Malate/L-lactate dehydrogenases	hypothetical protein	YP_006119079.1
 
 ```