Product milestone · 2010-05
Whisper Systems released beta versions of RedPhone and TextSecure, the apps that preceded Signal. [1]
Signal Logo
Archive record · not confirmed as the current logo.
Logo files, variants & history · SVG, PNG · updated 2 mo ago
File checks recorded: The file registry records a passed file-format check for each file.AI-assisted source check: An AI-assisted process compared the artwork with its recorded source URL; an editor has not reviewed it.Editorial / reference only: Recorded use status for this logo record.
Brand profile
About Signal
Encrypted messaging service
Signal is an open-source, end-to-end encrypted messaging service for text messages, voice calls and video calls. It is developed by the nonprofit Signal Foundation and its subsidiary Signal Messenger LLC, and its clients and server are published under the AGPL-3.0 licence.
Signal succeeded RedPhone, an encrypted calling app, and TextSecure, an encrypted texting app, which Whisper Systems, a start-up co-founded by Moxie Marlinspike and Stuart Anderson, first released in beta in May 2010.
The Signal Foundation was launched in February 2018 with initial funding of $50 million from WhatsApp co-founder Brian Acton.
Signal's brand-assets page lists the Signal word mark, logo, design marks and app icon as its brand assets and publishes usage guidelines for them.
Available in this archive
Signal logo files at a glance
Signal has 6 downloadable files in SVG, PNG in this archive. 1 logo record is catalogued; that is not the number of verified redesigns.
PNG renditions reach 2,048 pixels on the longest side.
Choose a format and size ↓File library
Files & downloads
Browse recorded formats and variants for Signal. Source formats appear first, followed by raster sizes.
Available from SimilarLogo
SVG · Primary
Monochrome rendition · Community reproduction
PNG · Primary
Monochrome rendition · Community reproduction
PNG · Primary
Monochrome rendition · Community reproduction
PNG · Primary
Monochrome rendition · Community reproduction
PNG · Primary
Monochrome rendition · Community reproduction
PNG · Primary
Monochrome rendition · Community reproduction
A file link or download does not grant a trademark licence or permission to reuse a logo.
Brand heritage
Logo history & brand milestones
One logo record is catalogued. The milestones below are dated separately from it.
Predecessor apps, the naming of Signal and its protocol, and the nonprofit foundation. No dated change to the Signal logo is recorded in the sources checked. Company and product dates are labelled separately from design changes.
Company milestone · 2011-11
Twitter acquired Whisper Systems; it later released TextSecure and RedPhone as open-source software. [1]
Company milestone · 2013-01
Open Whisper Systems, founded by Marlinspike to continue development of TextSecure and RedPhone, launched its website. [1]
Product milestone · 2015-03-02
Signal 2.0 for iPhone added TextSecure-compatible private messaging to the app's encrypted calling. [2]
Product milestone · 2015-11-02
Signal for Android began rolling out: TextSecure was renamed Signal and RedPhone users were moved to the new app. [3]
Product milestone · 2016-03-30
Open Whisper Systems renamed its Axolotl encryption protocol the Signal Protocol, after unifying its apps under the Signal name. [4]
Company milestone · 2018-02-21
Moxie Marlinspike and Brian Acton announced the Signal Technology Foundation, a 501(c)(3) nonprofit started with $50 million from Acton. [1]
Research sources
- Signal (software) ↗ · Wikipedia · accessed 2026-09-25
- Signal 2.0: Private messaging comes to the iPhone ↗ · Signal, 2015-03-02 · accessed 2026-09-25
- Just Signal ↗ · Signal, 2015-11-02 · accessed 2026-09-25
- Signal on the outside, Signal on the inside ↗ · Signal, 2016-03-30 · accessed 2026-09-25
- Signal Brand Assets ↗ · Signal · accessed 2026-09-25
Compiled 2026-09-25 by AI-assisted source review. Each statement links its sources; an editor has not yet independently confirmed them.
Dates not verifiedStatus unverified
Signal logo Monochrome rendition · Community reproduction
Monochrome community vector reproduction from Simple Icons. The SVG is a sanitized drawing copy and PNGs are generated renditions, not official press-kit masters. The collection date is not the logo’s introduction date.
1/1
All 1 logo record for Signal
- Signal logo Monochrome rendition · Community reproduction (this page)
Colour sample
Rendition colours
Black (primary sample)Primary
- HEX
- #000000
- RGB
- 0, 0, 0
Text contrast on white21:1 · AAA
Text contrast on near-black1.11:1 · Fail
Colour recorded with the Simple Icons community reproduction. It is not an owner-published colour specification. See other black logos →
Reference
Frequently asked
Can I use the Signal logo?
Download for identification, news and comparison. Commercial use needs the owner's permission. This page never grants a licence. Always check the owner's brand guidelines.
What file formats are available for the Signal logo in this archive?
Available file formats: SVG, PNG. Dimensions, source and usage conditions are listed for each file below.
Visual neighbours
Marks with visual support
Ranked from image embeddings, perceptual hashes and geometric evidence. Ranks are not percentages or trademark clearance.
Same industry
More Media & Streaming logos
Listed because the archive records the same industry, United States first.
Provenance
Source & evidence
Simple Icons community reproduction (github.com/simple-icons/simple-icons · icons/signal.svg), checked by an AI-assisted process; an editor has not reviewed it.
Editorial / reference only. Download for identification, news and comparison. Commercial use needs the owner's permission. This page never grants a licence.
Technical provenance
Source typeSimple Icons community reproductionInspect source reference ↗
Source reviewAI-assisted check · 2026-09-08; no editor reviewInspect the recorded website
- Source
- github.com/simple-icons/simple-icons · icons/signal.svg
- Source date
- 2026-09-08
- Recorded by
- Archive import with an AI-assisted source check
- Originality
- Community vector reproduction; not an official master
- SHA-256
- b93f159e23af4384c27a0119b833c98c72d3aba5d766c61e05c1171dbef8198b
SHA-256 of the recorded file. Checksums identify exact bytes, not who created the artwork.
Cite or link to this record
SimilarLogo. “Signal logo record.” Updated 2026-09-08. https://similarlogo.com/brand/signal/
Record Change log (1)
2026-09-08Signal: source-attributed artwork and PNG/SVG renditions added.
This is a monochrome community vector reproduction from Simple Icons, not an official press-kit master. Downloads include a cleaned SVG and PNG sizes generated from it. The collection date is not the logo’s introduction date.
All logos and trademarks on SimilarLogo are the property of their respective owners and are provided for informational, editorial and identification purposes only. Availability here does not imply any licence, affiliation or endorsement. Rights holder? Claim this brand · Request removal · Report an error. Staff review each request; there is no automatic takedown.