# ILSpy alternatives and competitors (2026) The closest ILSpy alternatives are [ReversingLabs Spectra Analyze](https://cybersectools.com/tools/reversinglabs-spectra-analyze), [Nightwing DejaVM](https://cybersectools.com/tools/nightwing-dejavm) and [Joe Sandbox DEC](https://cybersectools.com/tools/joe-sandbox-dec). Picking an ILSpy alternative comes down to fit: Malware Analysis coverage, your environment, your integrations and your budget. So each option below shows what it covers, how it deploys, its pricing model and the company behind it. 29 alternatives. Closest matches: ReversingLabs Spectra Analyze, Nightwing DejaVM, Joe Sandbox DEC. ## The product [ILSpy](https://cybersectools.com/tools/ilspy) ILSpy is the open-source .NET assembly browser and decompiler with various decompiler frontends and features. Category: [Security Operations](https://cybersectools.com/categories/security-operations) · Pricing model: Free ## ILSpy alternatives and competitors ILSpy is a free [Malware Analysis](https://cybersectools.com/categories/malware-analysis) solution. The closest matches by shared tags and NIST CSF 2.0 coverage are [ReversingLabs Spectra Analyze](https://cybersectools.com/tools/reversinglabs-spectra-analyze), [Nightwing DejaVM](https://cybersectools.com/tools/nightwing-dejavm), [Joe Sandbox DEC](https://cybersectools.com/tools/joe-sandbox-dec), [Zenyard RE Agent](https://cybersectools.com/tools/zenyard-re-agent), and [RevEng.AI](https://cybersectools.com/tools/revengai). All 29 alternatives on this page are ranked the same way. Want a free option? See [free and open source security operations solutions](https://cybersectools.com/free), plus free picks in other categories. ## The closest ILSpy alternatives These 8 solutions overlap most with ILSpy. Each one says what the product does and, when the overlap is big enough, which capabilities it shares. ### 1. [ReversingLabs Spectra Analyze](https://cybersectools.com/tools/reversinglabs-spectra-analyze) Malware analysis platform for SOC teams with binary analysis and threat detection [Malware Analysis](https://cybersectools.com/categories/malware-analysis) · Commercial Key features: 10 listed. See them on the [ReversingLabs Spectra Analyze page](https://cybersectools.com/tools/reversinglabs-spectra-analyze#features). [ReversingLabs Spectra Analyze alternatives](https://cybersectools.com/alternatives/reversinglabs-spectra-analyze) · [ILSpy vs ReversingLabs Spectra Analyze](https://cybersectools.com/compare/ilspy-vs-reversinglabs-spectra-analyze) ### 2. [Nightwing DejaVM](https://cybersectools.com/tools/nightwing-dejavm) Whole-system emulation environment for software dev, debugging, testing & security [Malware Analysis](https://cybersectools.com/categories/malware-analysis) · Commercial Key features: 8 listed. See them on the [Nightwing DejaVM page](https://cybersectools.com/tools/nightwing-dejavm#features). [Nightwing DejaVM alternatives](https://cybersectools.com/alternatives/nightwing-dejavm) · [ILSpy vs Nightwing DejaVM](https://cybersectools.com/compare/ilspy-vs-nightwing-dejavm) ### 3. [Joe Sandbox DEC](https://cybersectools.com/tools/joe-sandbox-dec) Plugin that decompiles malware PE files into readable C code using hybrid analysis. [Malware Analysis](https://cybersectools.com/categories/malware-analysis) · Commercial Key features: 8 listed. See them on the [Joe Sandbox DEC page](https://cybersectools.com/tools/joe-sandbox-dec#features). [Joe Sandbox DEC alternatives](https://cybersectools.com/alternatives/joe-sandbox-dec) · [ILSpy vs Joe Sandbox DEC](https://cybersectools.com/compare/ilspy-vs-joe-sandbox-dec) ### 4. [Zenyard RE Agent](https://cybersectools.com/tools/zenyard-re-agent) AI agent for in-depth binary analysis and reverse engineering assistance. [Malware Analysis](https://cybersectools.com/categories/malware-analysis) · Commercial Key features: 8 listed. See them on the [Zenyard RE Agent page](https://cybersectools.com/tools/zenyard-re-agent#features). [Zenyard RE Agent alternatives](https://cybersectools.com/alternatives/zenyard-re-agent) · [ILSpy vs Zenyard RE Agent](https://cybersectools.com/compare/ilspy-vs-zenyard-re-agent) ### 5. [RevEng.AI](https://cybersectools.com/tools/revengai) AI-powered binary analysis platform for reverse engineering & malware analysis. [Malware Analysis](https://cybersectools.com/categories/malware-analysis) · Commercial Key features: 9 listed. See them on the [RevEng.AI page](https://cybersectools.com/tools/revengai#features). [RevEng.AI alternatives](https://cybersectools.com/alternatives/revengai) · [ILSpy vs RevEng.AI](https://cybersectools.com/compare/ilspy-vs-revengai) ### 6. [CodeHunter Labs](https://cybersectools.com/tools/codehunter-labs) Research division powering CodeHunter's pre-execution malware detection engine. [Malware Analysis](https://cybersectools.com/categories/malware-analysis) · Commercial Key features: 7 listed. See them on the [CodeHunter Labs page](https://cybersectools.com/tools/codehunter-labs#features). [CodeHunter Labs alternatives](https://cybersectools.com/alternatives/codehunter-labs) · [ILSpy vs CodeHunter Labs](https://cybersectools.com/compare/codehunter-labs-vs-ilspy) ### 7. [Reverse Engineering & Malware Analysis](https://cybersectools.com/tools/reverse-engineering-and-malware-analysis) Malware analysis & reverse engineering service producing IOCs, YARA/Sigma rules. [Malware Analysis](https://cybersectools.com/categories/malware-analysis) · Commercial Key features: 10 listed. See them on the [Reverse Engineering & Malware Analysis page](https://cybersectools.com/tools/reverse-engineering-and-malware-analysis#features). [Reverse Engineering & Malware Analysis alternatives](https://cybersectools.com/alternatives/reverse-engineering-and-malware-analysis) · [ILSpy vs Reverse Engineering & Malware Analysis](https://cybersectools.com/compare/ilspy-vs-reverse-engineering-and-malware-analysis) ### 8. [ANY.RUN](https://cybersectools.com/tools/anyrun) Interactive malware sandbox with TI lookup and IOC feeds for SOC teams. [Malware Analysis](https://cybersectools.com/categories/malware-analysis) · Commercial Key features: 10 listed. See them on the [ANY.RUN page](https://cybersectools.com/tools/anyrun#features). [ANY.RUN alternatives](https://cybersectools.com/alternatives/anyrun) · [ILSpy vs ANY.RUN](https://cybersectools.com/compare/anyrun-vs-ilspy) ## All 29 products like ILSpy The 8 above, plus: - [Deep Instinct DSX Companion](https://cybersectools.com/tools/deep-instinct-dsx-companion): GenAI-powered malware analysis tool for unknown & zero-day threats (Commercial) - [INLYSE Malware.AI](https://cybersectools.com/tools/inlyse-malwareai): Visual AI-based malware detection converting files to images for analysis (Commercial) - [Seqrite Malware Analysis Platform](https://cybersectools.com/tools/seqrite-malware-analysis-platform): Malware analysis platform for detecting and analyzing threats via sandbox (Commercial) - [OPSWAT MetaDefender Sandbox](https://cybersectools.com/tools/opswat-metadefender-sandbox): AI-driven malware sandbox for detecting evasive threats and zero-day attacks (Commercial) - [Nucleon Malprob](https://cybersectools.com/tools/nucleon-malprob): AI-powered malware detection service with web interface and API access (Commercial) - [PolySwarm Malware Intelligence](https://cybersectools.com/tools/polyswarm-malware-intelligence): Malware intelligence marketplace aggregating multiple detection engines (Commercial) - [Cyber Triage Malware Forensics Tool](https://cybersectools.com/tools/cyber-triage-malware-forensics-tool): Malware scanning tool for DFIR using 40+ engines from ReversingLabs (Commercial) - [Splunk Attack Analyzer](https://cybersectools.com/tools/splunk-attack-analyzer): Automated threat analysis platform for phishing and malware investigation (Commercial) - [VMRay Threat Analysis and Detection Platform](https://cybersectools.com/tools/vmray-threat-analysis-and-detection-platform): Malware sandboxing platform for threat analysis and detection in SOCs (Commercial) - [Varist Predictive Detection Engine](https://cybersectools.com/tools/varist-predictive-detection-engine): Real-time malware detection engine with sandboxing and zero-day detection (Commercial) - [Antiy Labs PTA](https://cybersectools.com/tools/antiy-labs-pta): APT-focused file threat analysis system using dynamic & static detection. (Commercial) - [GLIMPS Malware](https://cybersectools.com/tools/glimps-malware): Multi-engine file malware detection platform for securing business apps. (Commercial) - [Malwation Threat.Zone](https://cybersectools.com/tools/malwation-threatzone): Multi-OS malware analysis platform with sandbox, static analysis & URL scanning. (Commercial) - [Stairwell Analyze](https://cybersectools.com/tools/stairwell-analyze): Continuous, private malware analysis and threat intel platform for enterprises. (Commercial) - [Threatray](https://cybersectools.com/tools/threatray): AI-driven binary code analysis platform for malware detection & intelligence. (Commercial) - [Unknown Cyber Magic™](https://cybersectools.com/tools/unknown-cyber-magictm): AI-powered malware analysis & threat research platform with chat interface. (Commercial) - [WetStone Labs](https://cybersectools.com/tools/wetstone-labs): Cybersecurity & digital forensics software for malware detection and DFIR. (Commercial) - [DTRSEC REnigma](https://cybersectools.com/tools/dtrsec-renigma): Sandbox platform for interactive malware detonation, record/replay, and forensic analysis (Commercial) - [FIOR LARA Sandbox](https://cybersectools.com/tools/fior-lara-sandbox): Sandbox product by FIOR; insufficient page data to detail functionality. (Commercial) - [SquareX Malware Sandbox](https://cybersectools.com/tools/squarex-malware-sandbox): Isolated browser-based sandbox for analyzing suspicious files and malware samples (Commercial) - [VinCSS Malware Analysis](https://cybersectools.com/tools/vincss-malware-analysis) (Commercial) ## Alternatives to each of these [ReversingLabs Spectra Analyze alternatives](https://cybersectools.com/alternatives/reversinglabs-spectra-analyze) · [Nightwing DejaVM alternatives](https://cybersectools.com/alternatives/nightwing-dejavm) · [Joe Sandbox DEC alternatives](https://cybersectools.com/alternatives/joe-sandbox-dec) · [Zenyard RE Agent alternatives](https://cybersectools.com/alternatives/zenyard-re-agent) · [RevEng.AI alternatives](https://cybersectools.com/alternatives/revengai) · [CodeHunter Labs alternatives](https://cybersectools.com/alternatives/codehunter-labs) · [Reverse Engineering & Malware Analysis alternatives](https://cybersectools.com/alternatives/reverse-engineering-and-malware-analysis) · [ANY.RUN alternatives](https://cybersectools.com/alternatives/anyrun) · [Deep Instinct DSX Companion alternatives](https://cybersectools.com/alternatives/deep-instinct-dsx-companion) · [INLYSE Malware.AI alternatives](https://cybersectools.com/alternatives/inlyse-malwareai) · [Seqrite Malware Analysis Platform alternatives](https://cybersectools.com/alternatives/seqrite-malware-analysis-platform) · [OPSWAT MetaDefender Sandbox alternatives](https://cybersectools.com/alternatives/opswat-metadefender-sandbox) ## Compare ILSpy with - [ILSpy vs ReversingLabs Spectra Analyze](https://cybersectools.com/compare/ilspy-vs-reversinglabs-spectra-analyze) - [ILSpy vs Nightwing DejaVM](https://cybersectools.com/compare/ilspy-vs-nightwing-dejavm) - [ILSpy vs Joe Sandbox DEC](https://cybersectools.com/compare/ilspy-vs-joe-sandbox-dec) - [ILSpy vs Zenyard RE Agent](https://cybersectools.com/compare/ilspy-vs-zenyard-re-agent) - [ILSpy vs RevEng.AI](https://cybersectools.com/compare/ilspy-vs-revengai) - [ILSpy vs CodeHunter Labs](https://cybersectools.com/compare/codehunter-labs-vs-ilspy) - [ILSpy vs Reverse Engineering & Malware Analysis](https://cybersectools.com/compare/ilspy-vs-reverse-engineering-and-malware-analysis) - [ILSpy vs ANY.RUN](https://cybersectools.com/compare/anyrun-vs-ilspy) ## ILSpy Alternatives FAQ ### What are the closest alternatives to ILSpy? The closest matches to ILSpy by shared tags and NIST CSF 2.0 coverage are ReversingLabs Spectra Analyze, Nightwing DejaVM, Joe Sandbox DEC, Zenyard RE Agent, and RevEng.AI. All of them are Malware Analysis products. ### How many alternatives to ILSpy are available? This page shows 29 alternatives to ILSpy, all in the Malware Analysis category. Each one is matched on shared tags and NIST CSF 2.0 areas, and the closest matches rank first. ### Is ILSpy free or commercial? ILSpy is a free Malware Analysis product. You can use it at no cost. Only commercial alternatives are listed here. Free and open source products are under /free. ### What type of solution is ILSpy? ILSpy is a Malware Analysis product in the Security Operations category. You can compare it with the 29 other Malware Analysis products on this page. --- Source: https://cybersectools.com/alternatives/ilspy For AI agents: every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md, and any product or compare page has a Markdown copy too (add .md to its URL). More on ILSpy and its alternatives: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=alternatives-md