1
What's Your Sign?
objective-see.org/products/whatsyoursign.htmlAlso covers privacy · same kind of website
Check file origin and cryptographic signing details from Finder with this macOS utility.
Alternatives
The Best Collision Alternatives in 2026
24 alternatives2 free · 0 open source
Looking for something like Collision? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 2 are free or have a free plan.
Collision checks file hashes on Linux, with installation available through Flathub.
Top picks at a glance
First suggestionWhat's Your Sign?Check file origin and cryptographic signing details from…Free or freemium optionTombTomb makes strong encryption easier for everyday use by…Another optionKnockKnockCheck which software is persistently installed on a Mac…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | What's Your Sign? | — | Not stated | macOS, Web |
| 2 | KnockKnock | — | Not stated | macOS, Web |
| 3 | GPG Suite | — | Not stated | macOS |
| 4 | Linux Hardening | — | Not stated | Linux, Web |
| 5 | ShuffleStacks | — | Not stated | Linux, Web |
| 6 | WhoAmI Project | — | Not stated | Linux, Web |
| 7 | Linux Hardening | — | Not stated | Linux, Web |
| 8 | Tomb | Free | Not stated | Linux, Web |
| 9 | Freenet | — | Not stated | Linux, macOS, Web |
| 10 | Hyphanet | — | Not stated | Linux, macOS, Web |
All Collision alternatives
2
KnockKnock
objective-see.org/products/knockknock.htmlAlso covers privacy · same kind of website
Check which software is persistently installed on a Mac with KnockKnock, a tool for inspecting startup items.
3
GPG Suite
gpgtools.orgAlso covers privacy
GPG Mail 8 for macOS Golden Gate is in beta, and the GPGTools page lists installation instructions, known issues, and support information.
4
Linux Hardening
madaidans-insecurities.github.io/guides/linux-…Also covers linux and privacy · same kind of website
Follow this Linux hardening guide for steps to improve the security of a Linux system.
5
ShuffleStacks
shufflecake.netAlso covers linux and privacy · same kind of website
Shufflecake is a Linux tool for creating multiple hidden filesystems with plausible deniability.
6
WhoAmI Project
owerdogan.github.io/whoami-projectAlso covers linux and privacy · same kind of website
Use the WhoAmI Project to configure enhanced privacy and anonymity for Debian- or Arch-based Linux distributions.
7
Linux Hardening
vez.mrsk.me/linux-hardening.htmlAlso covers linux and privacy · same kind of website
This guide collects Linux kernel and userland settings for improving security and usability, targeting Arch Linux and potentially other distributions.
8
Also covers linux and privacy · same kind of website · free
Tomb makes strong encryption easier for everyday use by creating locked folders that can be transported and hidden in a filesystem.
9
Freenet
freenet.orgAlso covers linux and privacy · same kind of website
Freenet offers peer-to-peer apps that operate without company control or dedicated servers, according to the project site.
10
Hyphanet
hyphanet.orgAlso covers linux and privacy · same kind of website
Hyphanet provides information and downloads for a project focused on protecting internet privacy.
11
Tracee
aquasecurity.github.io/tracee/latestAlso covers linux and privacy · same kind of website
Tracee monitors runtime security events and supports forensic analysis with eBPF instrumentation.
12
Also covers privacy · same kind of website · free plan
Stay for Safari lists userscripts and ad blocking among its features, with ratings and reviews available on the App Store.
13
OnionHop
onionhop.deAlso covers linux and privacy · same kind of website
OnionHop routes desktop traffic through Tor, with proxy and system-wide VPN modes, bridges, split tunneling, and a kill switch.
14
gocryptfs
nuetzlich.net/gocryptfsAlso covers privacy · same kind of website
gocryptfs provides file-based encryption through a mountable FUSE filesystem.
15
RansomWhere?
objective-see.org/products/ransomwhere.htmlAlso covers privacy · same kind of website
Detect possible macOS ransomware by monitoring file encryption activity with RansomWhere?.
16
Securely Wipe Disk
wiki.archlinux.org/title/Securely_wipe_diskAlso covers privacy · same kind of website
The ArchWiki guide covers securely wiping a disk, with related security articles and Arch Linux resources on the wiki.
17
Tor Browser
torproject.orgAlso covers privacy · same kind of website
The Tor Project promotes online anonymity and tools to defend against tracking, surveillance, and censorship.
18
Tunnelblick
tunnelblick.netAlso covers privacy · same kind of website
Tunnelblick is free, open-source macOS software for controlling OpenVPN connections, with downloads and support information on its site.
19
MailTrackerBlocker
apparition47.github.io/MailTrackerBlockerAlso covers privacy · same kind of website
The MailTrackerBlocker extension for macOS Apple Mail blocks email trackers, read receipts, and tracking pixels.
20
Lockdown Privacy
lockdownprivacy.comAlso covers privacy · same kind of website
Lockdown Privacy offers an open-source firewall for blocking trackers, ads, and badware in apps on iPhone and iPad.
21
BlockBlock
objective-see.org/products/blockblock.htmlAlso covers privacy · same kind of website
BlockBlock monitors for malware that installs itself persistently to run automatically after a restart or login.
22
Qubes
qubes-os.orgAlso covers privacy · same kind of website
Qubes OS is a free, open-source operating system for personal computers that uses compartmentalization as a security approach.
23
SSD Memory Cell Clearing
wiki.archlinux.org/title/Solid_state_drive/Mem…Also covers privacy · same kind of website
Consult ArchWiki guidance on clearing data from solid-state drives and memory cells.
24
OverSight
objective-see.org/products/oversight.htmlAlso covers privacy · same kind of website
Get alerts when an app accesses a Mac microphone or camera with OverSight.
No alternatives match this filter.
Alternatives to similar tools
Stay24 alternativesLinux Hardening24 alternativesSecurely Wipe Disk24 alternativesMailTrackerBlocker24 alternativesLockdown Privacy24 alternativesWhat's Your Sign?24 alternatives
What is the best alternative to Collision?
Based on features, tags and platforms, the closest alternatives to Collision are What's Your Sign?, KnockKnock, and GPG Suite.
Is there a free alternative to Collision?
Yes. Tomb and Stay are free or offer a free plan.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative